Many thanks Jose,
The reason for seeking the supposed sleek process is for me to write relevant properties of changed controls including EpiBindings as well as the custom script into a file (one per customization), so I could use tools like notepad++ to compare and merge customizations before selectively moving relevant versions to Kinetic.
Though I could open the saved file (saved by the edited “Kinetic Upgrade Helper” Script) and paste the content of Script.
The Grab Custom Controls on forms solution will be over kill for my needs, plus harder to compare the various versions of customizations (volume and xml tags).
Many thanks for the original solution as well.