I don’t mean to discourage people from asking questions and all, but I just want to say that there are tutorials on how to use FEBuilder, like:
Vesly’s brief tutorial for FEBuilder
@Vesly Just sayin’, you should make a playlist for your tutorials in your YouTube channel for easier access
MemeTzar’s series of FEBuilder Tutorials
XPGamesNL’s FEBuilder Tutorials
MarkyJoe’s Video (Outdated, but I guess you can still learn something from here)
If you really need more and quicker help, and more interactive, it’s better to ask in FEU Discord server. You can find the server invite here.
So far, magic animation is kinda a fickle to import. So you’ll need CSA (Custom Spell Animation) patch, and you can install it within the ROM with FEBuilder. After that, the process should be easy with how the CSA window interface guides you.
Other than that, the fastest way to learn is by trial and error. Copy and paste a ROM, then use the copy for learning more about FEBuilder.
Happy hacking!