few modification to be able add new item

pype/settings/entities/item_entities.py

@@ -633,7 +633,7 @@ class DictMutableKeysEntity(ItemEntity):
         child_obj = self.children_by_key.pop(old_key)
         self.children_by_key[new_key] = child_obj
 
-    def _add_child(self, key):
+    def add_new_key(self, key):
         new_child = self.create_schema_object(self.item_schema, self, True)
         self.children.append(new_child)
         self.children_by_key[key] = new_child
@@ -716,7 +716,7 @@ class DictMutableKeysEntity(ItemEntity):
         # TODO Check for value type if is Settings entity?
         child_obj = self.children_by_key.get(key)
         if not child_obj:
-            child_obj = self._add_child(key)
+            child_obj = self.add_new_key(key)
 
         child_obj.set_value(value)
 
@@ -841,7 +841,7 @@ class DictMutableKeysEntity(ItemEntity):
 
         # Create new children
         for _key, _value in self._current_value.items():
-            child_obj = self._add_child(_key)
+            child_obj = self.add_new_key(_key)
             child_obj.update_default_value(_value)
             if using_overrides:
                 if state is OverrideState.STUDIO:

pype/tools/settings/settings/widgets/dict_mutable_widget.py

@@ -532,11 +532,29 @@ class DictMutableKeysWidget(BaseWidget):
         # TODO implement
         pass
 
+    def add_new_key(self, key, label=None, after_widget=None):
+        new_widget_index = 0
+        if self.input_fields:
+            if not after_widget:
+                after_widget = self.input_fields[-1]
+
+            for idx in self.content_layout.count():
+                item = self.content_layout.itemAt(idx)
+                if item.widget() is after_widget:
+                    new_widget_index = idx
+                    break
+        child_entity = self.entity.add_new_key(key)
+        widget = ModifiableDictItem(
+            self.entity.collapsible, child_entity, self
+        )
+        self.input_fields.append(widget)
+        self.content_layout.insertWidget(new_widget_index, widget)
+        return widget
+
     def _on_entity_change(self):
         print("_on_entity_change", self.__class__.__name__, self.entity.path)
 
 
-
 class ModifiableDict(QtWidgets.QWidget):
     def create_ui(self, label_widget=None):
         if self.hightlight_content: