I don't think copy and paste is the best way to create templates. Creating templates is actually quite simple. It does take some work, but today you have AI to help you.
For example, create a free ChatGPT account, paste the User Guide URL:
https://pablomartin.com/zonea-user-guide/
Then start asking it questions in as much detail as you want. Even if you don't understand something, just keep asking. For example: What is MIDI? How does it work? How could I create my own template? I want to create a slider that performs a specific function in Traktor (or any other software). How do I do that? I think you'll get help very quickly.
Of course, there's absolutely no problem with asking anything you need here on the forum. But I think you'll probably get much faster answers by using the free version of ChatGPT alongside the User Guide.
I can certainly take another look at the copy functionality, but I still don't think it's the most practical way to build your own templates.