More than four profile custom metadata fields?

Hello,

I’ve been using a Mastodon instance for a while now and noticed that the maximum number of profile metadata I can have is four, which turns into a problem if I want to have more than four. I’m able to access the source code of the instance but have absolutely no idea where the setting controlling how much metadata can be added to a profile, nor do I have the time to sit and look through possibly hundreds of files to find one line (if it’s even on one line, that is). If anyone can tell me the location of the file where I can change this then it would be much appreciated.
Thanks.

Seems to be hard-coded in few places:

So that would mean digging into the code, no easy configuration change.

I’d suspect you can find instances that allow more than four fields