Update GizmoDrawerInspector.cs

Hide the option to use origin transform values if its null.

Author: FrayedFunction

Editor/GizmoDrawerInspector.cs

@@ -159,7 +159,7 @@ static void DrawInspector(GizmoType type, GizmoDrawerInspector editor, out bool
 
                     EditorGUILayout.PropertyField(editor.serProp_useTransformVals);
                     bool useTransform = editor.serProp_useTransformVals.boolValue;
-                    if (!useTransform)
+                    if (!useTransform && editor.gizmoDrawer.originTransform != null)
                         EditorGUILayout.PropertyField(editor.serProp_useOriginTransformValues);
 
                     /* Show rotation and scale fields if we're not using either the transform of the object