Multi mode app supports
1: Yachtimer start sequence.
3. Stopwatch, lap times etc.
4. Countdown adjust (Hours, Minutes, Seconds)
5. Watch (time, data plus running mode that Stopwatch etc was started in).
6. In clock mode up/down inverts watch face.
Press Select long time to switch mode.
Now uses persistent storage. Remembers state between runs and configuration of timer. So you can switch out and switch back and timer will look like it continued to run.
Note as app is actually shut down when switched away features like vibration will not happen nor lap times be remembered.