option to loop/combine countdown timers for workout
Many people do timed workouts during which you do one exercise and when the countdown timer beeps after the time is up, you go to the next exercise. Often there's a little break in between of say 10s.
This type of use would already be possible if it would be possible to loop a timer. In other words if you could tick a box so the timer would sound the chosen alarm and instantly repeat (with only a brief alarm that you don't have to switch off). It would be even better if it would be possible to have two different timers in one repeat loop. That way, you could sound a (potentially different) alarm at the end of the break.
Naturally it would be great if you could even program entire workout sessions like 20 x (1' + a 15" break) followed by 5 x (2' + a 5" break), but just being able to autorestart one timer would already facilitate this use case greatly and I think it would be a very minor change.