adds id editor

src/operators/create_id_mask.py

@@ -0,0 +1,38 @@
+import bpy
+
+
+class CreateIDMaskOperator(bpy.types.Operator):
+    bl_idname = "id_mask_editor.create_id_mask_attribute"
+    bl_label = ""
+    bl_options = {'INTERNAL'}
+
+    @classmethod
+    def poll(cls, context):
+
+        obj = context.active_object
+        if obj.type != 'MESH':
+            return False
+
+        if not obj.data:
+            return False
+
+        mesh = obj.data
+        return 'ID_MASK' not in mesh.color_attributes
+
+    def execute(self, context):
+        obj = context.active_object
+        if obj.type != 'MESH':
+            return {'FINISHED'}
+
+        if not obj.data:
+            return {'FINISHED'}
+
+        mesh = obj.data
+
+        if 'ID_MASK' in mesh.color_attributes:
+            return {'FINISHED'}
+
+        bpy.ops.geometry.color_attribute_add(name='ID_MASK', data_type='FLOAT_COLOR', domain='CORNER')
+        mesh.id_mask_editor_properties.target_attribute = 'ID_MASK'
+
+        return {'FINISHED'}