Hi Ulisses, most v3 scripts can be used directly in v4. There were a small number that needed minor updates. The V4 script parser is stricter about syntax errors and will throw an error on invalid code while the script parser in v3 would silently ignore some of those things.
I made quite a few modifications and used several scripts.
We should consult the various discussions in which I participated. Finally everything is here on the forum, and I can't upload all the folders, files and scripts.
It's always a satisfaction to personalize your interface by yourself, it's not very complicated and there will always be nice people to help you.