Any better GUI options for per game control recaps?

Focusing mostly on N64 right now and dabbling in some ps1. One of my favorite features of Retroarch is the per game controller recaps

I did some setup so that when I launch the game from launchbox / bigbox it auto loads the roam in Retroarch and Retroarch automatically applies my saved remap files

My only issue is that when setting up controls for 4 player games which is a lot of them, it’s confusing and a slow process

Having to go through line by line for all 4 controllers to make sure they are setup identical and remember to get the correct x- and plus axis leaves room for errors

Is there some tool or other GUI to create these remap files Retroarch can see that might be more straightforward?

I’ve got 200+ games left to do and most will need custom recaps thanks to the weird n64 controller and it’s c buttons. It’s really important the controls are all done and universal for 4 players so that games with the kids are straightforward

Thanks!