Gentle stand-up/stretch reminders during Focus Sessions (without shortening the session)

It would be great if Rize could send a gentle reminder every 30 minutes during a Focus Session to stand up and stretch, purely as a notification/nudge, without pausing, interrupting, or shortening the focus session itself. Unlike Break Sessions (which end the focus time), this would just be a lightweight visual/audio cue so users can take a quick physical break while the focus timer keeps running uninterrupted.