How Do I Make Custom TMs Show Up In The Bag in Rejuv v14?

[VoidlitAudino]

I'm trying to add a TM for a custom move into Rejuvenation v14 and while I'm able to see it in the list of item in the debug menu, when I try to give it to myself, it doesn't show up in my bag. From what I can tell, it seems to be related to the switches linked to each TM... But I have no idea how to add new switches. There's a big hash full of 'em in scripts/Rejuv/SystemConstraints.rb, and I've made a modded version of said hash in patch/Mods with a switch added for the new TM, but it doesn't show up properly in-game. Adding the new TM to my bag now flips the switch in the spot that I assigned it in the hash, but that spot still shows up as empty in the switches menu, and more importantly, I still can't actually use the damn TM. I did basically this exact same thing in 13.5 without any of the hassle - I just had to define the TM in itemtext and give it to myself and that was that - so whatever the problem is, it's new to v14. So I guess my question is, how do I either a) properly add a new switch to the game, or b) undo whatever was changed in v14 to link those switches to the TMs in the first place?