I am updating code which has a lot of NSMatrix button arrays. My UI has a binding to "selectedTag" (from NSControl) which is deprecated. Notes on NSMatrix say to use a containing view (say, NSGridView) and add the same action to all buttons. But this doesn't help the binding issue because NSGridView has nothing to bind. Any Ideas?
Addendum: In spite of doing a non-fruitful search before I posted, I fould the same question asked elsewhere, but no answer. https://forums.developer.apple.com/message/80244#80244. I just can't imagine removing this capability without providing something equivalent.