diff --git a/openpype/hosts/photoshop/plugins/publish/collect_instances.py b/openpype/hosts/photoshop/plugins/publish/collect_instances.py
index f1446f045f..6198ed0156 100644
--- a/openpype/hosts/photoshop/plugins/publish/collect_instances.py
+++ b/openpype/hosts/photoshop/plugins/publish/collect_instances.py
@@ -12,6 +12,10 @@ class CollectInstances(pyblish.api.ContextPlugin):
     This collector takes into account assets that are associated with
     an LayerSet and marked with a unique identifier;
 
+    If no image instances are explicitly created, it looks if there is value
+    in `flatten_subset_template` (configurable in Settings), in that case it
+    produces flatten image with all visible layers.
+
     Identifier:
         id (str): "pyblish.avalon.instance"
     """
@@ -22,6 +26,7 @@ class CollectInstances(pyblish.api.ContextPlugin):
     families_mapping = {
         "image": []
     }
+    # configurable in Settings
     flatten_subset_template = ""
 
     def process(self, context):