Build 3547 (available now) includes support for Binding Groups. Check it out…
This is an experimental build which also involves a change to the song/rack file format so I recommend making backups of everything before using this version. That said, (assuming no bugs) I’ve made it so that if you save a song in 3547 and then go back to an earlier version the bindings will still load in the old version - it’s just that your grouping will be lost.
This build also includes Transport Triggers.