When layering with the "toggle on hold" option selected, there should be another option enabled to not override the base layer config when a given key is unbound.
Imagine a configuration full of hotkeys, where the fingers have buttons mapped to 1-4, and I want to add a modifier key that flips these buttons to 5-8. Currently, I would need to duplicate the entire profile, change the 1-4 buttons to 5-8, and then keep any changes synced between the two. With this new option, I could simply have a mostly unbound profile that only sets the 5-8 keys, and layer it on top of the existing profile. Holding the layering key would change just those four buttons, leaving the others intact. Much simpler!
Imagine a configuration full of hotkeys, where the fingers have buttons mapped to 1-4, and I want to add a modifier key that flips these buttons to 5-8. Currently, I would need to duplicate the entire profile, change the 1-4 buttons to 5-8, and then keep any changes synced between the two. With this new option, I could simply have a mostly unbound profile that only sets the 5-8 keys, and layer it on top of the existing profile. Holding the layering key would change just those four buttons, leaving the others intact. Much simpler!
