Pausing the automation track would be tricky, but I can put it on my wish list.
Beyond that, we would need to define what "stop everything" means, and every part of that definition would be an additional effort. This would probably be best presented as a "master pause" feature that pauses the auto-scrolling, recording, tempo, automation track ... anything else? Then if someone wants some of those things to be paused but not others, a new batch of settings would be needed. And then restarting some of those things will create issues, like restarting a tempo or recording at exactly the right time. So, you can add further details about your requirements here, or I can follow up if I am able to work on this task later.