Can you not put a UE against a Group? List --> Relationship --> Group. It looks like the record is scriptable as you can get to fields on it, but i don't see a client or user event deployment record for adding a script. Thought this may be a case of "only a UE can be applied" but there's no UE or client script record available in the dropdown when deploying.

I vaguely recall Groups being not fully supported, maybe because it's kinda like a list somehow under the covers?

must be. I can still do what I need to do I just wanted to update the name based on what i was doing. Just has to be manual.

or attach the code to a specific form?