+1
but....I would like to see a different "background" process of how it is done. (please correct me if I am wrong)

As of now, a " mute" and "back to normal" is done by destructive editing. Meaning, it forces BIAB to regenerate track(s), "cutting out" and "pasting in" segments. If this was was done by actually automating volumes, the process would be far more flexible.
#1 you will not lose generation and process would take less time (as it will not regenerate tracks)
#2 you would be able to go into ACW or Audio edit and do a fine tune or further precise automation

As far as the OP request, again +1 I think F5 is quick and convenient and should include all tracks., I am just proposing the background mechanics of how this can be done.