It's already there by default (pic above is me just loading the scene from the ZIP, not editing anything), but because BP doesn't save cf_J_Vagina_root --> k_f_dan_entry when you switch to charas that aren't using the exact same uncensor, it goes away upon chara switch. If you load the scene and scroll to BP, you can select both and save the timeline data using "Single File", or just add the timeline data back after you switch like your video (much easier imo). I put something in the notes about that, but it's hard to explain through folders lol
If you've ever asked "why not just use BP instead of manually animating" when using my scenes, this is part of the reason why. BP is super annoying
I was anticipating a lot of messages and shit about this scene because there's 2 colliders, tons of node constraints and switching node constraints, BP setup, body size and particularly bust size constraints, etc etc that's going to make it not very fun to use. I'm glad you posted that though because
I know it, but others may not.