Master select buttons add Flash & Go to sequences

Would it be possible to add an option for the Master select buttons for a sequence to Flash on the down press and Go on the release?

I couldn't find if this had been requested before.  It would be great for a loop on a top bank master to flash and then advance to the next step.

Alternately, it could be Seq+ and Flash on the down press, but that isn't as likely to work as well.