Some changes

addons/dialogue_manager/inspector_plugin.gd

@@ -0,0 +1,17 @@
+@tool
+class_name DMInspectorPlugin extends EditorInspectorPlugin
+
+
+func _can_handle(object: Object) -> bool:
+	if object is GDScript: return false
+	if not object is Node and not object is Resource: return false
+	if "name" in object and object.name == "Dialogue Manager": return false
+	return true
+
+
+func _parse_property(object: Object, type, name: String, hint_type: PropertyHint, hint_string: String, usage_flags: int, wide: bool) -> bool:
+	if hint_string == "DialogueResource" or ("dialogue" in name.to_lower() and hint_string == "Resource"):
+		add_property_editor(name, DMDialogueEditorProperty.new())
+		return true
+
+	return false