Time flies when you are old!
Any way I needed to make some changes to my own screenset and have also made some quick modifications revolving around bug fixes, better source screenset parsing and copying capabilities.
Now all of the functionality built-in to UCCNC is supporters and more.
Such as mass-copying elements between controllers, and mass-delete.
Screensets now don't suffer from element ordering issues. And from my testing it is possible to completely remove all elements and recreate a screenset from scratch.
Let me know if you see any issues or bugs.