javascript – Note tool for call center agents

I have been working on a notes tool for my company to simplify the auditing and accounting of accounts. I've added extra features that also help with different aspects of the work.

I wonder if I can do anything to streamline some of the features I've created.

Such as the "pre-filling options". They take the contents of the hidden divs and add them to the text boxes of the note. I'm sure there's a better way to do that, but I think it's been too long since I think.

All comments are welcomed!

I have deleted any reference to the company to avoid any problem of publishing this information.

Too big to paste here:
https://pastebin.com/pdYH2DMq