How to unbind specific input actions?

I have a Character Pawn that I’d like to disable a subset of Input binds (while a UMG menu is up on screen) and then later rebind them. What is the best way of unbinding them? I could set them to a Nop function but that seems like a tedious reduplication of functions. Looking at the API for InputComponent I see a clear all function but again can I disable particular ones without nuking everything?