Lap trigger on mobile

It would be good if there was a lap button on the mobile app so then a lap would recored in Strava. Often I use Zwift to record custom workout so I’m keen to see my power per rep.

Obviously it would be cool if you can create the workout in the app too.

I would like to see a lap timer on all the time so I would know when I’m competing for a jersey or a PR time.  Total laps then could also be incorporated.