diff --git a/.github/pr-glob-labeler.yml b/.github/pr-glob-labeler.yml
new file mode 100644
index 0000000000..286e7768b5
--- /dev/null
+++ b/.github/pr-glob-labeler.yml
@@ -0,0 +1,102 @@
+# Add type: unittest label if any changes in tests folders
+'type: unittest':
+- '*/*tests*/**/*'
+
+# any changes in documentation structure
+'type: documentation':
+- '*/**/*website*/**/*'
+- '*/**/*docs*/**/*'
+
+# hosts triage
+'host: Nuke':
+- '*/**/*nuke*'
+- '*/**/*nuke*/**/*'
+
+'host: Photoshop':
+- '*/**/*photoshop*'
+- '*/**/*photoshop*/**/*'
+
+'host: Harmony':
+- '*/**/*harmony*'
+- '*/**/*harmony*/**/*'
+
+'host: UE':
+- '*/**/*unreal*'
+- '*/**/*unreal*/**/*'
+
+'host: Houdini':
+- '*/**/*houdini*'
+- '*/**/*houdini*/**/*'
+
+'host: Maya':
+- '*/**/*maya*'
+- '*/**/*maya*/**/*'
+
+'host: Resolve':
+- '*/**/*resolve*'
+- '*/**/*resolve*/**/*'
+
+'host: Blender':
+- '*/**/*blender*'
+- '*/**/*blender*/**/*'
+
+'host: Hiero':
+- '*/**/*hiero*'
+- '*/**/*hiero*/**/*'
+
+'host: Fusion':
+- '*/**/*fusion*'
+- '*/**/*fusion*/**/*'
+
+'host: Flame':
+- '*/**/*flame*'
+- '*/**/*flame*/**/*'
+
+'host: TrayPublisher':
+- '*/**/*traypublisher*'
+- '*/**/*traypublisher*/**/*'
+
+'host: 3dsmax':
+- '*/**/*max*'
+- '*/**/*max*/**/*'
+
+'host: TV Paint':
+- '*/**/*tvpaint*'
+- '*/**/*tvpaint*/**/*'
+
+'host: CelAction':
+- '*/**/*celaction*'
+- '*/**/*celaction*/**/*'
+
+'host: After Effects':
+- '*/**/*aftereffects*'
+- '*/**/*aftereffects*/**/*'
+
+'host: Substance Painter':
+- '*/**/*substancepainter*'
+- '*/**/*substancepainter*/**/*'
+
+# modules triage
+'module: Deadline':
+- '*/**/*deadline*'
+- '*/**/*deadline*/**/*'
+
+'module: RoyalRender':
+- '*/**/*royalrender*'
+- '*/**/*royalrender*/**/*'
+
+'module: Sitesync':
+- '*/**/*sync_server*'
+- '*/**/*sync_server*/**/*'
+
+'module: Ftrack':
+- '*/**/*ftrack*'
+- '*/**/*ftrack*/**/*'
+
+'module: Shotgrid':
+- '*/**/*shotgrid*'
+- '*/**/*shotgrid*/**/*'
+
+'module: Kitsu':
+- '*/**/*kitsu*'
+- '*/**/*kitsu*/**/*'
diff --git a/client/ayon_core/hosts/aftereffects/api/launch_logic.py b/client/ayon_core/hosts/aftereffects/api/launch_logic.py
index 8c54908fe5..0d1a6cf585 100644
--- a/client/ayon_core/hosts/aftereffects/api/launch_logic.py
+++ b/client/ayon_core/hosts/aftereffects/api/launch_logic.py
@@ -15,8 +15,7 @@ from wsrpc_aiohttp import (
 
 from qtpy import QtCore
 
-from ayon_core.lib import Logger
-from ayon_core.tests.lib import is_in_tests
+from ayon_core.lib import Logger, is_in_tests
 from ayon_core.pipeline import install_host
 from ayon_core.addon import AddonsManager
 from ayon_core.tools.utils import host_tools, get_ayon_qt_app
diff --git a/client/ayon_core/hosts/harmony/api/README.md b/client/ayon_core/hosts/harmony/api/README.md
index cdc17b2285..680a88c423 100644
--- a/client/ayon_core/hosts/harmony/api/README.md
+++ b/client/ayon_core/hosts/harmony/api/README.md
@@ -52,7 +52,7 @@ Because Harmony projects are directories, this integration uses `.zip` as work f
 
 ### Show Workfiles on launch
 
-You can show the Workfiles app when Harmony launches by setting environment variable `AVALON_HARMONY_WORKFILES_ON_LAUNCH=1`.
+You can show the Workfiles app when Harmony launches by setting environment variable `AYON_HARMONY_WORKFILES_ON_LAUNCH=1`.
 
 ## Developing
 
diff --git a/client/ayon_core/hosts/harmony/api/TB_sceneOpened.js b/client/ayon_core/hosts/harmony/api/TB_sceneOpened.js
index 1fb0d295e7..cdf60c1aa8 100644
--- a/client/ayon_core/hosts/harmony/api/TB_sceneOpened.js
+++ b/client/ayon_core/hosts/harmony/api/TB_sceneOpened.js
@@ -349,7 +349,7 @@ function start() {
     /** hostname or ip of server - should be localhost */
     var host = '127.0.0.1';
     /** port of the server */
-    var port = parseInt(System.getenv('AVALON_HARMONY_PORT'));
+    var port = parseInt(System.getenv('AYON_HARMONY_PORT'));
 
     // Attach the client to the QApplication to preserve.
     var app = QCoreApplication.instance();
diff --git a/client/ayon_core/hosts/harmony/api/lib.py b/client/ayon_core/hosts/harmony/api/lib.py
index 782134c343..bc73e19066 100644
--- a/client/ayon_core/hosts/harmony/api/lib.py
+++ b/client/ayon_core/hosts/harmony/api/lib.py
@@ -189,14 +189,14 @@ def launch(application_path, *args):
     install_host(harmony)
 
     ProcessContext.port = random.randrange(49152, 65535)
-    os.environ["AVALON_HARMONY_PORT"] = str(ProcessContext.port)
+    os.environ["AYON_HARMONY_PORT"] = str(ProcessContext.port)
     ProcessContext.application_path = application_path
 
     # Launch Harmony.
     setup_startup_scripts()
     check_libs()
 
-    if not os.environ.get("AVALON_HARMONY_WORKFILES_ON_LAUNCH", False):
+    if not os.environ.get("AYON_HARMONY_WORKFILES_ON_LAUNCH", False):
         open_empty_workfile()
         return
 
diff --git a/client/ayon_core/hosts/maya/api/lib.py b/client/ayon_core/hosts/maya/api/lib.py
index 7b791c3d51..324ef28ab5 100644
--- a/client/ayon_core/hosts/maya/api/lib.py
+++ b/client/ayon_core/hosts/maya/api/lib.py
@@ -3140,119 +3140,6 @@ def fix_incompatible_containers():
                          "ReferenceLoader", type="string")
 
 
-def _null(*args):
-    pass
-
-
-class shelf():
-    '''A simple class to build shelves in maya. Since the build method is empty,
-    it should be extended by the derived class to build the necessary shelf
-    elements. By default it creates an empty shelf called "customShelf".'''
-
-    ###########################################################################
-    '''This is an example shelf.'''
-    # class customShelf(_shelf):
-    #     def build(self):
-    #         self.addButon(label="button1")
-    #         self.addButon("button2")
-    #         self.addButon("popup")
-    #         p = cmds.popupMenu(b=1)
-    #         self.addMenuItem(p, "popupMenuItem1")
-    #         self.addMenuItem(p, "popupMenuItem2")
-    #         sub = self.addSubMenu(p, "subMenuLevel1")
-    #         self.addMenuItem(sub, "subMenuLevel1Item1")
-    #         sub2 = self.addSubMenu(sub, "subMenuLevel2")
-    #         self.addMenuItem(sub2, "subMenuLevel2Item1")
-    #         self.addMenuItem(sub2, "subMenuLevel2Item2")
-    #         self.addMenuItem(sub, "subMenuLevel1Item2")
-    #         self.addMenuItem(p, "popupMenuItem3")
-    #         self.addButon("button3")
-    # customShelf()
-    ###########################################################################
-
-    def __init__(self, name="customShelf", iconPath="", preset={}):
-        self.name = name
-
-        self.iconPath = iconPath
-
-        self.labelBackground = (0, 0, 0, 0)
-        self.labelColour = (.9, .9, .9)
-
-        self.preset = preset
-
-        self._cleanOldShelf()
-        cmds.setParent(self.name)
-        self.build()
-
-    def build(self):
-        '''This method should be overwritten in derived classes to actually
-        build the shelf elements. Otherwise, nothing is added to the shelf.'''
-        for item in self.preset['items']:
-            if not item.get('command'):
-                item['command'] = self._null
-            if item['type'] == 'button':
-                self.addButon(item['name'],
-                              command=item['command'],
-                              icon=item['icon'])
-            if item['type'] == 'menuItem':
-                self.addMenuItem(item['parent'],
-                                 item['name'],
-                                 command=item['command'],
-                                 icon=item['icon'])
-            if item['type'] == 'subMenu':
-                self.addMenuItem(item['parent'],
-                                 item['name'],
-                                 command=item['command'],
-                                 icon=item['icon'])
-
-    def addButon(self, label, icon="commandButton.png",
-                 command=_null, doubleCommand=_null):
-        '''
-            Adds a shelf button with the specified label, command,
-            double click command and image.
-        '''
-        cmds.setParent(self.name)
-        if icon:
-            icon = os.path.join(self.iconPath, icon)
-            print(icon)
-        cmds.shelfButton(width=37, height=37, image=icon, label=label,
-                         command=command, dcc=doubleCommand,
-                         imageOverlayLabel=label, olb=self.labelBackground,
-                         olc=self.labelColour)
-
-    def addMenuItem(self, parent, label, command=_null, icon=""):
-        '''
-            Adds a shelf button with the specified label, command,
-            double click command and image.
-        '''
-        if icon:
-            icon = os.path.join(self.iconPath, icon)
-            print(icon)
-        return cmds.menuItem(p=parent, label=label, c=command, i="")
-
-    def addSubMenu(self, parent, label, icon=None):
-        '''
-            Adds a sub menu item with the specified label and icon to
-            the specified parent popup menu.
-        '''
-        if icon:
-            icon = os.path.join(self.iconPath, icon)
-            print(icon)
-        return cmds.menuItem(p=parent, label=label, i=icon, subMenu=1)
-
-    def _cleanOldShelf(self):
-        '''
-            Checks if the shelf exists and empties it if it does
-            or creates it if it does not.
-        '''
-        if cmds.shelfLayout(self.name, ex=1):
-            if cmds.shelfLayout(self.name, q=1, ca=1):
-                for each in cmds.shelfLayout(self.name, q=1, ca=1):
-                    cmds.deleteUI(each)
-        else:
-            cmds.shelfLayout(self.name, p="ShelfLayout")
-
-
 def update_content_on_context_change():
     """
     This will update scene content to match new asset on context change
diff --git a/client/ayon_core/hosts/maya/api/menu.py b/client/ayon_core/hosts/maya/api/menu.py
index 7478739496..70347e91b6 100644
--- a/client/ayon_core/hosts/maya/api/menu.py
+++ b/client/ayon_core/hosts/maya/api/menu.py
@@ -9,7 +9,8 @@ import maya.cmds as cmds
 
 from ayon_core.pipeline import (
     get_current_asset_name,
-    get_current_task_name
+    get_current_task_name,
+    registered_host
 )
 from ayon_core.pipeline.workfile import BuildWorkfile
 from ayon_core.tools.utils import host_tools
@@ -21,8 +22,10 @@ from .workfile_template_builder import (
     create_placeholder,
     update_placeholder,
     build_workfile_template,
-    update_workfile_template,
+    update_workfile_template
 )
+from ayon_core.tools.workfile_template_build import open_template_ui
+from .workfile_template_builder import MayaTemplateBuilder
 
 log = logging.getLogger(__name__)
 
@@ -167,16 +170,6 @@ def install(project_settings):
             tearOff=True,
             parent=MENU_NAME
         )
-        cmds.menuItem(
-            "Create Placeholder",
-            parent=builder_menu,
-            command=create_placeholder
-        )
-        cmds.menuItem(
-            "Update Placeholder",
-            parent=builder_menu,
-            command=update_placeholder
-        )
         cmds.menuItem(
             "Build Workfile from template",
             parent=builder_menu,
@@ -187,6 +180,27 @@ def install(project_settings):
             parent=builder_menu,
             command=update_workfile_template
         )
+        cmds.menuItem(
+            divider=True,
+            parent=builder_menu
+        )
+        cmds.menuItem(
+            "Open Template",
+            parent=builder_menu,
+            command=lambda *args: open_template_ui(
+                MayaTemplateBuilder(registered_host()), get_main_window()
+            ),
+        )
+        cmds.menuItem(
+            "Create Placeholder",
+            parent=builder_menu,
+            command=create_placeholder
+        )
+        cmds.menuItem(
+            "Update Placeholder",
+            parent=builder_menu,
+            command=update_placeholder
+        )
 
         cmds.setParent(MENU_NAME, menu=True)
 
diff --git a/client/ayon_core/hosts/maya/plugins/publish/validate_rig_joints_hidden.py b/client/ayon_core/hosts/maya/plugins/publish/validate_rig_joints_hidden.py
index c6b9d23574..bb5ec8353e 100644
--- a/client/ayon_core/hosts/maya/plugins/publish/validate_rig_joints_hidden.py
+++ b/client/ayon_core/hosts/maya/plugins/publish/validate_rig_joints_hidden.py
@@ -7,6 +7,7 @@ from ayon_core.hosts.maya.api import lib
 from ayon_core.pipeline.publish import (
     RepairAction,
     ValidateContentsOrder,
+    PublishValidationError
 )
 
 
@@ -38,7 +39,8 @@ class ValidateRigJointsHidden(pyblish.api.InstancePlugin):
         invalid = self.get_invalid(instance)
 
         if invalid:
-            raise ValueError("Visible joints found: {0}".format(invalid))
+            raise PublishValidationError(
+                "Visible joints found: {0}".format(invalid))
 
     @classmethod
     def repair(cls, instance):
diff --git a/client/ayon_core/hosts/maya/startup/userSetup.py b/client/ayon_core/hosts/maya/startup/userSetup.py
index 22b776915c..adbbfe4f44 100644
--- a/client/ayon_core/hosts/maya/startup/userSetup.py
+++ b/client/ayon_core/hosts/maya/startup/userSetup.py
@@ -46,24 +46,5 @@ if bool(int(os.environ.get(key, "0"))):
         lowestPriority=True
     )
 
-# Build a shelf.
-shelf_preset = settings['maya'].get('project_shelf')
-if shelf_preset:
-    icon_path = os.path.join(
-        os.environ['OPENPYPE_PROJECT_SCRIPTS'],
-        project_name,
-        "icons")
-    icon_path = os.path.abspath(icon_path)
-
-    for i in shelf_preset['imports']:
-        import_string = "from {} import {}".format(project_name, i)
-        print(import_string)
-        exec(import_string)
-
-    cmds.evalDeferred(
-        "mlib.shelf(name=shelf_preset['name'], iconPath=icon_path,"
-        " preset=shelf_preset)"
-    )
-
 
 print("Finished OpenPype usersetup.")
diff --git a/client/ayon_core/hosts/nuke/api/pipeline.py b/client/ayon_core/hosts/nuke/api/pipeline.py
index bdba0757b6..92b44428a0 100644
--- a/client/ayon_core/hosts/nuke/api/pipeline.py
+++ b/client/ayon_core/hosts/nuke/api/pipeline.py
@@ -21,10 +21,12 @@ from ayon_core.pipeline import (
     AVALON_CONTAINER_ID,
     get_current_asset_name,
     get_current_task_name,
+    registered_host,
 )
 from ayon_core.pipeline.workfile import BuildWorkfile
 from ayon_core.tools.utils import host_tools
 from ayon_core.hosts.nuke import NUKE_ROOT_DIR
+from ayon_core.tools.workfile_template_build import open_template_ui
 
 from .command import viewer_update_and_undo_stop
 from .lib import (
@@ -55,6 +57,7 @@ from .workfile_template_builder import (
     build_workfile_template,
     create_placeholder,
     update_placeholder,
+    NukeTemplateBuilder,
 )
 from .workio import (
     open_file,
@@ -313,7 +316,7 @@ def _install_menu():
         lambda: BuildWorkfile().process()
     )
 
-    menu_template = menu.addMenu("Template Builder")  # creating template menu
+    menu_template = menu.addMenu("Template Builder")
     menu_template.addCommand(
         "Build Workfile from template",
         lambda: build_workfile_template()
@@ -321,6 +324,12 @@ def _install_menu():
 
     if not ASSIST:
         menu_template.addSeparator()
+        menu_template.addCommand(
+            "Open template",
+            lambda: open_template_ui(
+                NukeTemplateBuilder(registered_host()), get_main_window()
+            )
+        )
         menu_template.addCommand(
             "Create Place Holder",
             lambda: create_placeholder()
diff --git a/client/ayon_core/hosts/nuke/api/workfile_template_builder.py b/client/ayon_core/hosts/nuke/api/workfile_template_builder.py
index 4c15da983e..218ba97dd5 100644
--- a/client/ayon_core/hosts/nuke/api/workfile_template_builder.py
+++ b/client/ayon_core/hosts/nuke/api/workfile_template_builder.py
@@ -7,7 +7,7 @@ from ayon_core.pipeline.workfile.workfile_template_builder import (
     LoadPlaceholderItem,
     CreatePlaceholderItem,
     PlaceholderLoadMixin,
-    PlaceholderCreateMixin
+    PlaceholderCreateMixin,
 )
 from ayon_core.tools.workfile_template_build import (
     WorkfileBuildPlaceholderDialog,
diff --git a/client/ayon_core/hosts/photoshop/api/lib.py b/client/ayon_core/hosts/photoshop/api/lib.py
index 3111503e40..af14e6d02f 100644
--- a/client/ayon_core/hosts/photoshop/api/lib.py
+++ b/client/ayon_core/hosts/photoshop/api/lib.py
@@ -3,12 +3,11 @@ import sys
 import contextlib
 import traceback
 
-from ayon_core.lib import env_value_to_bool, Logger
+from ayon_core.lib import env_value_to_bool, Logger, is_in_tests
 from ayon_core.addon import AddonsManager
 from ayon_core.pipeline import install_host
 from ayon_core.tools.utils import host_tools
 from ayon_core.tools.utils import get_ayon_qt_app
-from ayon_core.tests.lib import is_in_tests
 
 from .launch_logic import ProcessLauncher, stub
 
diff --git a/client/ayon_core/hosts/photoshop/plugins/publish/collect_batch_data.py b/client/ayon_core/hosts/photoshop/plugins/publish/collect_batch_data.py
index 0ed891c8cf..464b6e3999 100644
--- a/client/ayon_core/hosts/photoshop/plugins/publish/collect_batch_data.py
+++ b/client/ayon_core/hosts/photoshop/plugins/publish/collect_batch_data.py
@@ -21,7 +21,7 @@ from openpype_modules.webpublisher.lib import (
     get_batch_asset_task_info,
     parse_json
 )
-from ayon_core.tests.lib import is_in_tests
+from ayon_core.lib import is_in_tests
 
 
 class CollectBatchData(pyblish.api.ContextPlugin):
diff --git a/client/ayon_core/hosts/photoshop/plugins/publish/collect_color_coded_instances.py b/client/ayon_core/hosts/photoshop/plugins/publish/collect_color_coded_instances.py
index e309da62ba..d486136f78 100644
--- a/client/ayon_core/hosts/photoshop/plugins/publish/collect_color_coded_instances.py
+++ b/client/ayon_core/hosts/photoshop/plugins/publish/collect_color_coded_instances.py
@@ -3,10 +3,9 @@ import re
 
 import pyblish.api
 
-from ayon_core.lib import prepare_template_data
+from ayon_core.lib import prepare_template_data, is_in_tests
 from ayon_core.hosts.photoshop import api as photoshop
 from ayon_core.settings import get_project_settings
-from ayon_core.tests.lib import is_in_tests
 
 
 class CollectColorCodedInstances(pyblish.api.ContextPlugin):
diff --git a/client/ayon_core/lib/__init__.py b/client/ayon_core/lib/__init__.py
index 12a5535a1c..ab6a604adc 100644
--- a/client/ayon_core/lib/__init__.py
+++ b/client/ayon_core/lib/__init__.py
@@ -158,6 +158,7 @@ from .ayon_info import (
     is_running_from_build,
     is_staging_enabled,
     is_dev_mode_enabled,
+    is_in_tests,
 )
 
 
@@ -229,6 +230,8 @@ __all__ = [
 
     "IniSettingRegistry",
     "JSONSettingRegistry",
+    "AYONSecureRegistry",
+    "AYONSettingsRegistry",
     "OpenPypeSecureRegistry",
     "OpenPypeSettingsRegistry",
     "get_local_site_id",
@@ -271,6 +274,7 @@ __all__ = [
     "terminal",
 
     "get_datetime_data",
+    "get_timestamp",
     "get_formatted_current_time",
 
     "Logger",
@@ -278,6 +282,7 @@ __all__ = [
     "is_running_from_build",
     "is_staging_enabled",
     "is_dev_mode_enabled",
+    "is_in_tests",
 
     "requests_get",
     "requests_post"
diff --git a/client/ayon_core/lib/ayon_info.py b/client/ayon_core/lib/ayon_info.py
index 725e10fa0e..97a35adcc6 100644
--- a/client/ayon_core/lib/ayon_info.py
+++ b/client/ayon_core/lib/ayon_info.py
@@ -38,6 +38,16 @@ def is_staging_enabled():
     return os.getenv("AYON_USE_STAGING") == "1"
 
 
+def is_in_tests():
+    """Process is running in automatic tests mode.
+
+    Returns:
+        bool: True if running in tests.
+
+    """
+    return os.environ.get("AYON_IN_TESTS") == "1"
+
+
 def is_dev_mode_enabled():
     """Dev mode is enabled in AYON.
 
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_aftereffects_deadline.py b/client/ayon_core/modules/deadline/plugins/publish/submit_aftereffects_deadline.py
index a4eb5b673c..3537c3099d 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_aftereffects_deadline.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_aftereffects_deadline.py
@@ -7,10 +7,10 @@ from datetime import datetime
 from ayon_core.lib import (
     env_value_to_bool,
     collect_frames,
+    is_in_tests,
 )
 from openpype_modules.deadline import abstract_submit_deadline
 from openpype_modules.deadline.abstract_submit_deadline import DeadlineJobInfo
-from ayon_core.tests.lib import is_in_tests
 
 
 @attr.s
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_blender_deadline.py b/client/ayon_core/modules/deadline/plugins/publish/submit_blender_deadline.py
index e9e6ef083d..ae19e63a37 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_blender_deadline.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_blender_deadline.py
@@ -10,10 +10,10 @@ from ayon_core.lib import (
     BoolDef,
     NumberDef,
     TextDef,
+    is_in_tests,
 )
 from ayon_core.pipeline.publish import AYONPyblishPluginMixin
 from ayon_core.pipeline.farm.tools import iter_expected_files
-from ayon_core.tests.lib import is_in_tests
 
 from openpype_modules.deadline import abstract_submit_deadline
 from openpype_modules.deadline.abstract_submit_deadline import DeadlineJobInfo
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_harmony_deadline.py b/client/ayon_core/modules/deadline/plugins/publish/submit_harmony_deadline.py
index d3915ed16d..beb8afc3a3 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_harmony_deadline.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_harmony_deadline.py
@@ -12,7 +12,7 @@ import pyblish.api
 
 from openpype_modules.deadline import abstract_submit_deadline
 from openpype_modules.deadline.abstract_submit_deadline import DeadlineJobInfo
-from ayon_core.tests.lib import is_in_tests
+from ayon_core.lib import is_in_tests
 
 
 class _ZipFile(ZipFile):
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_houdini_cache_deadline.py b/client/ayon_core/modules/deadline/plugins/publish/submit_houdini_cache_deadline.py
index f6676da3d6..94e0947952 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_houdini_cache_deadline.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_houdini_cache_deadline.py
@@ -7,11 +7,11 @@ import pyblish.api
 from ayon_core.lib import (
     TextDef,
     NumberDef,
+    is_in_tests,
 )
 from ayon_core.pipeline import (
     AYONPyblishPluginMixin
 )
-from ayon_core.tests.lib import is_in_tests
 from openpype_modules.deadline import abstract_submit_deadline
 from openpype_modules.deadline.abstract_submit_deadline import DeadlineJobInfo
 
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_houdini_render_deadline.py b/client/ayon_core/modules/deadline/plugins/publish/submit_houdini_render_deadline.py
index 436f0d70ad..45209d00f6 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_houdini_render_deadline.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_houdini_render_deadline.py
@@ -6,10 +6,10 @@ from datetime import datetime
 import pyblish.api
 
 from ayon_core.pipeline import AYONPyblishPluginMixin
-from ayon_core.tests.lib import is_in_tests
 from openpype_modules.deadline import abstract_submit_deadline
 from openpype_modules.deadline.abstract_submit_deadline import DeadlineJobInfo
 from ayon_core.lib import (
+    is_in_tests,
     BoolDef,
     NumberDef
 )
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_maya_deadline.py b/client/ayon_core/modules/deadline/plugins/publish/submit_maya_deadline.py
index 1b86d74987..d01c344321 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_maya_deadline.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_maya_deadline.py
@@ -35,14 +35,14 @@ from ayon_core.lib import (
     BoolDef,
     NumberDef,
     TextDef,
-    EnumDef
+    EnumDef,
+    is_in_tests,
 )
 from ayon_core.hosts.maya.api.lib_rendersettings import RenderSettings
 from ayon_core.hosts.maya.api.lib import get_attr_in_layer
 
 from openpype_modules.deadline import abstract_submit_deadline
 from openpype_modules.deadline.abstract_submit_deadline import DeadlineJobInfo
-from ayon_core.tests.lib import is_in_tests
 from ayon_core.pipeline.farm.tools import iter_expected_files
 
 
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_maya_remote_publish_deadline.py b/client/ayon_core/modules/deadline/plugins/publish/submit_maya_remote_publish_deadline.py
index 08ddbcf661..1042c44c33 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_maya_remote_publish_deadline.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_maya_remote_publish_deadline.py
@@ -3,7 +3,7 @@ import attr
 from datetime import datetime
 
 from ayon_core.pipeline import PublishXmlValidationError
-from ayon_core.tests.lib import is_in_tests
+from ayon_core.lib import is_in_tests
 from openpype_modules.deadline import abstract_submit_deadline
 from openpype_modules.deadline.abstract_submit_deadline import DeadlineJobInfo
 
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_nuke_deadline.py b/client/ayon_core/modules/deadline/plugins/publish/submit_nuke_deadline.py
index f48f9ba9b7..26606cadfd 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_nuke_deadline.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_nuke_deadline.py
@@ -10,8 +10,8 @@ import pyblish.api
 from ayon_core.pipeline.publish import (
     AYONPyblishPluginMixin
 )
-from ayon_core.tests.lib import is_in_tests
 from ayon_core.lib import (
+    is_in_tests,
     BoolDef,
     NumberDef
 )
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_publish_cache_job.py b/client/ayon_core/modules/deadline/plugins/publish/submit_publish_cache_job.py
index 522f19604b..54d4fb47fc 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_publish_cache_job.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_publish_cache_job.py
@@ -12,8 +12,7 @@ from ayon_core.client import (
     get_last_version_by_subset_name,
 )
 from ayon_core.pipeline import publish
-from ayon_core.lib import EnumDef
-from ayon_core.tests.lib import is_in_tests
+from ayon_core.lib import EnumDef, is_in_tests
 from ayon_core.pipeline.version_start import get_versioning_start
 
 from ayon_core.pipeline.farm.pyblish_functions import (
diff --git a/client/ayon_core/modules/deadline/plugins/publish/submit_publish_job.py b/client/ayon_core/modules/deadline/plugins/publish/submit_publish_job.py
index 35b54d40ca..299babdc0e 100644
--- a/client/ayon_core/modules/deadline/plugins/publish/submit_publish_job.py
+++ b/client/ayon_core/modules/deadline/plugins/publish/submit_publish_job.py
@@ -13,8 +13,7 @@ from ayon_core.client import (
     get_last_version_by_subset_name,
 )
 from ayon_core.pipeline import publish
-from ayon_core.lib import EnumDef
-from ayon_core.tests.lib import is_in_tests
+from ayon_core.lib import EnumDef, is_in_tests
 from ayon_core.pipeline.version_start import get_versioning_start
 
 from ayon_core.pipeline.farm.pyblish_functions import (
diff --git a/client/ayon_core/modules/royalrender/lib.py b/client/ayon_core/modules/royalrender/lib.py
index 2b26ec82e4..5343a5f06f 100644
--- a/client/ayon_core/modules/royalrender/lib.py
+++ b/client/ayon_core/modules/royalrender/lib.py
@@ -10,7 +10,12 @@ from datetime import datetime
 
 import pyblish.api
 
-from ayon_core.lib import BoolDef, NumberDef, is_running_from_build
+from ayon_core.lib import (
+    BoolDef,
+    NumberDef,
+    is_running_from_build,
+    is_in_tests,
+)
 from ayon_core.lib.execute import run_ayon_launcher_process
 from ayon_core.modules.royalrender.api import Api as rrApi
 from ayon_core.modules.royalrender.rr_job import (
@@ -22,7 +27,6 @@ from ayon_core.modules.royalrender.rr_job import (
 from ayon_core.pipeline import AYONPyblishPluginMixin
 from ayon_core.pipeline.publish import KnownPublishError
 from ayon_core.pipeline.publish.lib import get_published_workfile_instance
-from ayon_core.tests.lib import is_in_tests
 
 
 class BaseCreateRoyalRenderJob(pyblish.api.InstancePlugin,
diff --git a/client/ayon_core/pipeline/context_tools.py b/client/ayon_core/pipeline/context_tools.py
index 5716793354..730852ff4a 100644
--- a/client/ayon_core/pipeline/context_tools.py
+++ b/client/ayon_core/pipeline/context_tools.py
@@ -19,10 +19,10 @@ from ayon_core.client import (
     get_asset_name_identifier,
     get_ayon_server_api_connection,
 )
+from ayon_core.lib import is_in_tests
 from ayon_core.lib.events import emit_event
 from ayon_core.addon import load_addons, AddonsManager
 from ayon_core.settings import get_project_settings
-from ayon_core.tests.lib import is_in_tests
 
 from .publish.lib import filter_pyblish_plugins
 from .anatomy import Anatomy
diff --git a/client/ayon_core/pipeline/workfile/workfile_template_builder.py b/client/ayon_core/pipeline/workfile/workfile_template_builder.py
index 9778e60d1b..3004e55861 100644
--- a/client/ayon_core/pipeline/workfile/workfile_template_builder.py
+++ b/client/ayon_core/pipeline/workfile/workfile_template_builder.py
@@ -553,6 +553,12 @@ class AbstractTemplateBuilder(object):
 
         self.clear_shared_populate_data()
 
+    def open_template(self):
+        """Open template file with registered host."""
+        template_preset = self.get_template_preset()
+        template_path = template_preset["path"]
+        self.host.open_file(template_path)
+
     @abstractmethod
     def import_template(self, template_path):
         """
diff --git a/client/ayon_core/plugins/publish/cleanup.py b/client/ayon_core/plugins/publish/cleanup.py
index 7bed3269c2..df68af7e57 100644
--- a/client/ayon_core/plugins/publish/cleanup.py
+++ b/client/ayon_core/plugins/publish/cleanup.py
@@ -5,7 +5,7 @@ import shutil
 import pyblish.api
 import re
 
-from ayon_core.tests.lib import is_in_tests
+from ayon_core.lib import is_in_tests
 
 
 class CleanUp(pyblish.api.InstancePlugin):
diff --git a/client/ayon_core/plugins/publish/collect_from_create_context.py b/client/ayon_core/plugins/publish/collect_from_create_context.py
index edb5cc1654..66ca5745b2 100644
--- a/client/ayon_core/plugins/publish/collect_from_create_context.py
+++ b/client/ayon_core/plugins/publish/collect_from_create_context.py
@@ -61,7 +61,10 @@ class CollectFromCreateContext(pyblish.api.ContextPlugin):
             ("AYON_FOLDER_PATH", asset_name),
             ("AYON_TASK_NAME", task_name)
         ):
-            os.environ[key] = value
+            if value is None:
+                os.environ.pop(key, None)
+            else:
+                os.environ[key] = value
 
     def create_instance(
         self,
diff --git a/client/ayon_core/plugins/publish/collect_scene_version.py b/client/ayon_core/plugins/publish/collect_scene_version.py
index 254d3c913d..b04900c74e 100644
--- a/client/ayon_core/plugins/publish/collect_scene_version.py
+++ b/client/ayon_core/plugins/publish/collect_scene_version.py
@@ -1,8 +1,7 @@
 import os
 import pyblish.api
 
-from ayon_core.lib import get_version_from_path
-from ayon_core.tests.lib import is_in_tests
+from ayon_core.lib import get_version_from_path, is_in_tests
 from ayon_core.pipeline import KnownPublishError
 
 
diff --git a/client/ayon_core/settings/defaults/system_settings/applications.json b/client/ayon_core/settings/defaults/system_settings/applications.json
index a5283751e9..2610c15315 100644
--- a/client/ayon_core/settings/defaults/system_settings/applications.json
+++ b/client/ayon_core/settings/defaults/system_settings/applications.json
@@ -1271,7 +1271,7 @@
         "icon": "{}/app_icons/harmony.png",
         "host_name": "harmony",
         "environment": {
-            "AVALON_HARMONY_WORKFILES_ON_LAUNCH": "1"
+            "AYON_HARMONY_WORKFILES_ON_LAUNCH": "1"
         },
         "variants": {
             "21": {
diff --git a/client/ayon_core/tests/README.md b/client/ayon_core/tests/README.md
deleted file mode 100644
index c05166767c..0000000000
--- a/client/ayon_core/tests/README.md
+++ /dev/null
@@ -1,4 +0,0 @@
-Tests for Pype
---------------
-Trigger by:
-    `pype test --pype`
\ No newline at end of file
diff --git a/client/ayon_core/tests/__init__.py b/client/ayon_core/tests/__init__.py
deleted file mode 100644
index e69de29bb2..0000000000
diff --git a/client/ayon_core/tests/lib.py b/client/ayon_core/tests/lib.py
deleted file mode 100644
index c7d4423aba..0000000000
--- a/client/ayon_core/tests/lib.py
+++ /dev/null
@@ -1,88 +0,0 @@
-import os
-import sys
-import shutil
-import tempfile
-import contextlib
-
-import pyblish
-import pyblish.plugin
-from pyblish.vendor import six
-
-
-# Setup
-HOST = 'python'
-FAMILY = 'test.family'
-
-REGISTERED = pyblish.plugin.registered_paths()
-PACKAGEPATH = pyblish.lib.main_package_path()
-ENVIRONMENT = os.environ.get("PYBLISHPLUGINPATH", "")
-PLUGINPATH = os.path.join(PACKAGEPATH, '..', 'tests', 'plugins')
-
-
-def setup():
-    pyblish.plugin.deregister_all_paths()
-
-
-def setup_empty():
-    """Disable all plug-ins"""
-    setup()
-    pyblish.plugin.deregister_all_plugins()
-    pyblish.plugin.deregister_all_paths()
-    pyblish.plugin.deregister_all_hosts()
-    pyblish.plugin.deregister_all_callbacks()
-    pyblish.plugin.deregister_all_targets()
-    pyblish.api.deregister_all_discovery_filters()
-
-
-def teardown():
-    """Restore previously REGISTERED paths"""
-
-    pyblish.plugin.deregister_all_paths()
-    for path in REGISTERED:
-        pyblish.plugin.register_plugin_path(path)
-
-    os.environ["PYBLISHPLUGINPATH"] = ENVIRONMENT
-    pyblish.api.deregister_all_plugins()
-    pyblish.api.deregister_all_hosts()
-    pyblish.api.deregister_all_discovery_filters()
-    pyblish.api.deregister_test()
-    pyblish.api.__init__()
-
-
-@contextlib.contextmanager
-def captured_stdout():
-    """Temporarily reassign stdout to a local variable"""
-    try:
-        sys.stdout = six.StringIO()
-        yield sys.stdout
-    finally:
-        sys.stdout = sys.__stdout__
-
-
-@contextlib.contextmanager
-def captured_stderr():
-    """Temporarily reassign stderr to a local variable"""
-    try:
-        sys.stderr = six.StringIO()
-        yield sys.stderr
-    finally:
-        sys.stderr = sys.__stderr__
-
-
-@contextlib.contextmanager
-def tempdir():
-    """Provide path to temporary directory"""
-    try:
-        tempdir = tempfile.mkdtemp()
-        yield tempdir
-    finally:
-        shutil.rmtree(tempdir)
-
-
-def is_in_tests():
-    """Returns if process is running in automatic tests mode.
-
-    In tests mode different source DB is used, some plugins might be disabled
-    etc.
-    """
-    return os.environ.get("IS_TEST") == '1'
diff --git a/client/ayon_core/tests/mongo_performance.py b/client/ayon_core/tests/mongo_performance.py
deleted file mode 100644
index 2df3363f4b..0000000000
--- a/client/ayon_core/tests/mongo_performance.py
+++ /dev/null
@@ -1,288 +0,0 @@
-import pymongo
-import bson
-import random
-from datetime import datetime
-import os
-
-
-class TestPerformance():
-    '''
-        Class for testing performance of representation and their 'files'
-        parts.
-        Discussion is if embedded array:
-                            'files' : [ {'_id': '1111', 'path':'....},
-                                        {'_id'...}]
-                     OR documents:
-                            'files' : {
-                                            '1111': {'path':'....'},
-                                            '2222': {'path':'...'}
-                                        }
-                     is faster.
-
-        Current results:
-            without additional partial index documents is 3x faster
-            With index is array 50x faster then document
-
-        Partial index something like:
-        db.getCollection('performance_test').createIndex
-            ({'files._id': 1},
-            {partialFilterExpresion: {'files': {'$exists': true}}})
-        !DIDNT work for me, had to create manually in Compass
-
-    '''
-
-    MONGO_URL = 'mongodb://localhost:27017'
-    MONGO_DB = 'performance_test'
-    MONGO_COLLECTION = 'performance_test'
-
-    MAX_FILE_SIZE_B = 5000
-    MAX_NUMBER_OF_SITES = 50
-    ROOT_DIR = "C:/projects"
-
-    inserted_ids = []
-
-    def __init__(self, version='array'):
-        '''
-            It creates and fills collection, based on value of 'version'.
-
-        :param version: 'array' - files as embedded array,
-                        'doc' - as document
-        '''
-        self.client = pymongo.MongoClient(self.MONGO_URL)
-        self.db = self.client[self.MONGO_DB]
-        self.collection_name = self.MONGO_COLLECTION
-
-        self.version = version
-
-        if self.version != 'array':
-            self.collection_name = self.MONGO_COLLECTION + '_doc'
-
-        self.collection = self.db[self.collection_name]
-
-        self.ids = []  # for testing
-        self.inserted_ids = []
-
-    def prepare(self, no_of_records=100000, create_files=False):
-        '''
-            Produce 'no_of_records' of representations with 'files' segment.
-            It depends on 'version' value in constructor, 'arrray' or 'doc'
-        :return:
-        '''
-        print('Purging {} collection'.format(self.collection_name))
-        self.collection.delete_many({})
-
-        id = bson.objectid.ObjectId()
-
-        insert_recs = []
-        for i in range(no_of_records):
-            file_id = bson.objectid.ObjectId()
-            file_id2 = bson.objectid.ObjectId()
-            file_id3 = bson.objectid.ObjectId()
-
-            self.inserted_ids.extend([file_id, file_id2, file_id3])
-            version_str = "v{:03d}".format(i + 1)
-            file_name = "test_Cylinder_workfileLookdev_{}.mb".\
-                format(version_str)
-
-            document = {"files": self.get_files(self.version, i + 1,
-                                                file_id, file_id2, file_id3,
-                                                create_files)
-                        ,
-                        "context": {
-                            "subset": "workfileLookdev",
-                            "username": "petrk",
-                            "task": "lookdev",
-                            "family": "workfile",
-                            "hierarchy": "Assets",
-                            "project": {"code": "test", "name": "Test"},
-                            "version": i + 1,
-                            "asset": "Cylinder",
-                            "representation": "mb",
-                            "root": self.ROOT_DIR
-                        },
-                        "dependencies": [],
-                        "name": "mb",
-                        "parent": {"oid": '{}'.format(id)},
-                        "data": {
-                            "path": "C:\\projects\\test_performance\\Assets\\Cylinder\\publish\\workfile\\workfileLookdev\\{}\\{}".format(version_str, file_name),  # noqa: E501
-                            "template": "{root[work]}\\{project[name]}\\{hierarchy}\\{asset}\\publish\\{family}\\{subset}\\v{version:0>3}\\{project[code]}_{asset}_{subset}_v{version:0>3}<_{output}><.{frame:0>4}>.{representation}"  # noqa: E501
-                        },
-                        "type": "representation",
-                        "schema": "openpype:representation-2.0"
-                        }
-
-            insert_recs.append(document)
-
-        print('Prepared {} records in {} collection'.
-              format(no_of_records, self.collection_name))
-
-        self.collection.insert_many(insert_recs)
-        # TODO refactore to produce real array and not needeing ugly regex
-        self.collection.insert_one({"inserted_id": self.inserted_ids})
-        print('-' * 50)
-
-    def run(self, queries=1000, loops=3):
-        '''
-            Run X'queries' that are searching collection Y'loops' times
-        :param queries: how many times do ..find(...)
-        :param loops:  loop of testing X queries
-        :return: None
-        '''
-        print('Testing version {} on {}'.format(self.version,
-                                                self.collection_name))
-        print('Queries rung {} in {} loops'.format(queries, loops))
-
-        inserted_ids = list(self.collection.
-                            find({"inserted_id": {"$exists": True}}))
-        import re
-        self.ids = re.findall("'[0-9a-z]*'", str(inserted_ids))
-
-        import time
-
-        found_cnt = 0
-        for _ in range(loops):
-            print('Starting loop {}'.format(_))
-            start = time.time()
-            for _ in range(queries):
-                # val = random.choice(self.ids)
-                # val = val.replace("'", '')
-                val = random.randint(0, 50)
-                print(val)
-
-                if (self.version == 'array'):
-                    # prepared for partial index, without 'files': exists
-                    # wont engage
-                    found = self.collection.\
-                        find({'files': {"$exists": True},
-                              'files.sites.name': "local_{}".format(val)}).\
-                        count()
-                else:
-                    key = "files.{}".format(val)
-                    found = self.collection.find_one({key: {"$exists": True}})
-                print("found {} records".format(found))
-                # if found:
-                #     found_cnt += len(list(found))
-
-            end = time.time()
-            print('duration per loop {}'.format(end - start))
-            print("found_cnt {}".format(found_cnt))
-
-    def get_files(self, mode, i, file_id, file_id2, file_id3,
-                  create_files=False):
-        '''
-            Wrapper to decide if 'array' or document version should be used
-        :param mode: 'array'|'doc'
-        :param i: step number
-        :param file_id: ObjectId of first dummy file
-        :param file_id2: ..
-        :param file_id3: ..
-        :return:
-        '''
-        if mode == 'array':
-            return self.get_files_array(i, file_id, file_id2, file_id3,
-                                        create_files)
-        else:
-            return self.get_files_doc(i, file_id, file_id2, file_id3)
-
-    def get_files_array(self, i, file_id, file_id2, file_id3,
-                        create_files=False):
-        ret = [
-            {
-                 "path": "{root[work]}" + "{root[work]}/test_performance/Assets/Cylinder/publish/workfile/workfileLookdev/v{:03d}/test_Cylinder_A_workfileLookdev_v{:03d}.dat".format(i, i),  # noqa: E501
-                 "_id": '{}'.format(file_id),
-                 "hash": "temphash",
-                 "sites": self.get_sites(self.MAX_NUMBER_OF_SITES),
-                 "size": random.randint(0, self.MAX_FILE_SIZE_B)
-            },
-            {
-                "path": "{root[work]}" + "/test_performance/Assets/Cylinder/publish/workfile/workfileLookdev/v{:03d}/test_Cylinder_B_workfileLookdev_v{:03d}.dat".format(i, i),  # noqa: E501
-                "_id": '{}'.format(file_id2),
-                "hash": "temphash",
-                "sites": self.get_sites(self.MAX_NUMBER_OF_SITES),
-                "size": random.randint(0, self.MAX_FILE_SIZE_B)
-            },
-            {
-                "path": "{root[work]}" + "/test_performance/Assets/Cylinder/publish/workfile/workfileLookdev/v{:03d}/test_Cylinder_C_workfileLookdev_v{:03d}.dat".format(i, i),  # noqa: E501
-                "_id": '{}'.format(file_id3),
-                "hash": "temphash",
-                "sites": self.get_sites(self.MAX_NUMBER_OF_SITES),
-                "size": random.randint(0, self.MAX_FILE_SIZE_B)
-            }
-
-            ]
-        if create_files:
-            for f in ret:
-                path = f.get("path").replace("{root[work]}", self.ROOT_DIR)
-                os.makedirs(os.path.dirname(path), exist_ok=True)
-                with open(path, 'wb') as fp:
-                    fp.write(os.urandom(f.get("size")))
-
-        return ret
-
-    def get_files_doc(self, i, file_id, file_id2, file_id3):
-        ret = {}
-        ret['{}'.format(file_id)] = {
-            "path": "{root[work]}" +
-                    "/test_performance/Assets/Cylinder/publish/workfile/workfileLookdev/"  # noqa: E501
-                    "v{:03d}/test_CylinderA_workfileLookdev_v{:03d}.mb".format(i, i),  # noqa: E501
-            "hash": "temphash",
-            "sites": ["studio"],
-            "size": 87236
-        }
-
-        ret['{}'.format(file_id2)] = {
-            "path": "{root[work]}" +
-                    "/test_performance/Assets/Cylinder/publish/workfile/workfileLookdev/"  # noqa: E501
-                    "v{:03d}/test_CylinderB_workfileLookdev_v{:03d}.mb".format(i, i),  # noqa: E501
-            "hash": "temphash",
-            "sites": ["studio"],
-            "size": 87236
-        }
-        ret['{}'.format(file_id3)] = {
-            "path": "{root[work]}" +
-                    "/test_performance/Assets/Cylinder/publish/workfile/workfileLookdev/"  # noqa: E501
-                    "v{:03d}/test_CylinderC_workfileLookdev_v{:03d}.mb".format(i, i),  # noqa: E501
-            "hash": "temphash",
-            "sites": ["studio"],
-            "size": 87236
-        }
-
-        return ret
-
-    def get_sites(self, number_of_sites=50):
-        """
-            Return array of sites declaration.
-            Currently on 1st site has "created_dt" fillled, which should
-            trigger upload to 'gdrive' site.
-            'gdrive' site is appended, its destination for syncing for
-            Sync Server
-        Args:
-            number_of_sites:
-
-        Returns:
-
-        """
-        sites = []
-        for i in range(number_of_sites):
-            site = {'name': "local_{}".format(i)}
-            # do not create null 'created_dt' field, Mongo doesnt like it
-            if i == 0:
-                site['created_dt'] = datetime.now()
-
-            sites.append(site)
-
-        sites.append({'name': "gdrive"})
-
-        return sites
-
-
-if __name__ == '__main__':
-    tp = TestPerformance('array')
-    tp.prepare(no_of_records=10000, create_files=True)
-    # tp.run(10, 3)
-
-    # print('-'*50)
-    #
-    # tp = TestPerformance('doc')
-    # tp.prepare()  # enable to prepare data
-    # tp.run(1000, 3)
diff --git a/client/ayon_core/tests/test_avalon_plugin_presets.py b/client/ayon_core/tests/test_avalon_plugin_presets.py
deleted file mode 100644
index 4926286ca3..0000000000
--- a/client/ayon_core/tests/test_avalon_plugin_presets.py
+++ /dev/null
@@ -1,43 +0,0 @@
-from ayon_core.pipeline import (
-    install_host,
-    LegacyCreator,
-    register_creator_plugin,
-    discover_creator_plugins,
-)
-
-
-class MyTestCreator(LegacyCreator):
-
-    my_test_property = "A"
-
-    def __init__(self, name, asset, options=None, data=None):
-        super(MyTestCreator, self).__init__(self, name, asset,
-                                            options=None, data=None)
-
-
-# this is hack like no other - we need to inject our own avalon host
-# and bypass all its validation. Avalon hosts are modules that needs
-# `ls` callable as attribute. Voila:
-class Test:
-    __name__ = "test"
-    ls = len
-
-    @staticmethod
-    def install():
-        register_creator_plugin(MyTestCreator)
-
-
-def test_avalon_plugin_presets(monkeypatch, printer):
-    install_host(Test)
-
-    plugins = discover_creator_plugins()
-    printer("Test if we got our test plugin")
-    assert MyTestCreator in plugins
-    for p in plugins:
-        if p.__name__ == "MyTestCreator":
-            printer("Test if we have overridden existing property")
-            assert p.my_test_property == "B"
-            printer("Test if we have overridden superclass property")
-            assert p.active is False
-            printer("Test if we have added new property")
-            assert p.new_property == "new"
diff --git a/client/ayon_core/tests/test_lib_restructuralization.py b/client/ayon_core/tests/test_lib_restructuralization.py
deleted file mode 100644
index ffbd62b045..0000000000
--- a/client/ayon_core/tests/test_lib_restructuralization.py
+++ /dev/null
@@ -1,25 +0,0 @@
-# Test for backward compatibility of restructure of lib.py into lib library
-# Contains simple imports that should still work
-
-
-def test_backward_compatibility(printer):
-    printer("Test if imports still work")
-    try:
-        from ayon_core.lib import execute_hook
-        from ayon_core.lib import PypeHook
-
-        from ayon_core.lib import ApplicationLaunchFailed
-
-        from ayon_core.lib import get_ffmpeg_tool_path
-        from ayon_core.lib import get_last_version_from_path
-        from ayon_core.lib import get_paths_from_environ
-        from ayon_core.lib import get_version_from_path
-        from ayon_core.lib import version_up
-
-        from ayon_core.lib import get_ffprobe_streams
-
-        from ayon_core.lib import source_hash
-        from ayon_core.lib import run_subprocess
-
-    except ImportError as e:
-        raise
diff --git a/client/ayon_core/tests/test_pyblish_filter.py b/client/ayon_core/tests/test_pyblish_filter.py
deleted file mode 100644
index bc20f863c9..0000000000
--- a/client/ayon_core/tests/test_pyblish_filter.py
+++ /dev/null
@@ -1,60 +0,0 @@
-import os
-import pyblish.api
-import pyblish.util
-import pyblish.plugin
-from ayon_core.pipeline.publish.lib import filter_pyblish_plugins
-from . import lib
-
-
-def test_pyblish_plugin_filter_modifier(printer, monkeypatch):
-    """
-    Test if pyblish filter can filter and modify plugins on-the-fly.
-    """
-
-    lib.setup_empty()
-    monkeypatch.setitem(os.environ, 'PYBLISHPLUGINPATH', '')
-    plugins = pyblish.api.registered_plugins()
-    printer("Test if we have no registered plugins")
-    assert len(plugins) == 0
-    paths = pyblish.api.registered_paths()
-    printer("Test if we have no registered plugin paths")
-    assert len(paths) == 0
-
-    class MyTestPlugin(pyblish.api.InstancePlugin):
-        my_test_property = 1
-        label = "Collect Renderable Camera(s)"
-        hosts = ["test"]
-        families = ["default"]
-
-    pyblish.api.register_host("test")
-    pyblish.api.register_plugin(MyTestPlugin)
-    pyblish.api.register_discovery_filter(filter_pyblish_plugins)
-    plugins = pyblish.api.discover()
-
-    printer("Test if only one plugin was discovered")
-    assert len(plugins) == 1
-    printer("Test if properties are modified correctly")
-    assert plugins[0].label == "loaded from preset"
-    assert plugins[0].families == ["changed", "by", "preset"]
-    assert plugins[0].optional is True
-
-    lib.teardown()
-
-
-def test_pyblish_plugin_filter_removal(monkeypatch):
-    """ Test that plugin can be removed by filter """
-    lib.setup_empty()
-    monkeypatch.setitem(os.environ, 'PYBLISHPLUGINPATH', '')
-    plugins = pyblish.api.registered_plugins()
-
-    class MyTestRemovedPlugin(pyblish.api.InstancePlugin):
-        my_test_property = 1
-        label = "Collect Renderable Camera(s)"
-        hosts = ["test"]
-        families = ["default"]
-
-    pyblish.api.register_host("test")
-    pyblish.api.register_plugin(MyTestRemovedPlugin)
-    pyblish.api.register_discovery_filter(filter_pyblish_plugins)
-    plugins = pyblish.api.discover()
-    assert len(plugins) == 0
diff --git a/client/ayon_core/tools/workfile_template_build/__init__.py b/client/ayon_core/tools/workfile_template_build/__init__.py
index 82a22aea50..ad94ebcf79 100644
--- a/client/ayon_core/tools/workfile_template_build/__init__.py
+++ b/client/ayon_core/tools/workfile_template_build/__init__.py
@@ -1,5 +1,8 @@
 from .window import WorkfileBuildPlaceholderDialog
+from .lib import open_template_ui
 
 __all__ = (
     "WorkfileBuildPlaceholderDialog",
+
+    "open_template_ui"
 )
diff --git a/client/ayon_core/tools/workfile_template_build/lib.py b/client/ayon_core/tools/workfile_template_build/lib.py
new file mode 100644
index 0000000000..de3a0d0084
--- /dev/null
+++ b/client/ayon_core/tools/workfile_template_build/lib.py
@@ -0,0 +1,28 @@
+import traceback
+
+from qtpy import QtWidgets
+
+from ayon_core.tools.utils.dialogs import show_message_dialog
+
+
+def open_template_ui(builder, main_window):
+    """Open template from `builder`
+
+    Asks user about overwriting current scene and feedsback exceptions.
+    """
+    result = QtWidgets.QMessageBox.question(
+        main_window,
+        "Opening template",
+        "Caution! You will loose unsaved changes.\nDo you want to continue?",
+        QtWidgets.QMessageBox.Yes | QtWidgets.QMessageBox.No
+    )
+    if result == QtWidgets.QMessageBox.Yes:
+        try:
+            builder.open_template()
+        except Exception:
+            show_message_dialog(
+                title="Template Load Failed",
+                message="".join(traceback.format_exc()),
+                parent=main_window,
+                level="critical"
+            )
diff --git a/client/pyproject.toml b/client/pyproject.toml
index c21ca305a7..7b4329a31a 100644
--- a/client/pyproject.toml
+++ b/client/pyproject.toml
@@ -10,8 +10,6 @@ wsrpc_aiohttp = "^3.1.1" # websocket server
 Click = "^8"
 clique = "1.6.*"
 jsonschema = "^2.6.0"
-pymongo = "^3.11.2"
-log4mongo = "^1.7"
 pyblish-base = "^1.8.11"
 pynput = "^1.7.2" # Timers manager - TODO remove
 speedcopy = "^2.1"