Add training plans' "I did it!" to Companion app

The new training plans are great, but if you do a workout outside and you didn’t open Zwift to mark it as done before the workout’s expired, the plan becomes disajusted (next is an easy workout, etc). It would be great if we can simply open the Companion app to mark them as done since this can be done virtually anywhere whereas opening Zwift outside or at work is kinda weird.

I would see this button right below the workout’s detailed intervals! That’s where I looked for it first, actually.

Thanks!