@mattonabike: and I’m gonna disagree with your disagreement 
. Plenty of options for “quitting” already:
- Use the current scrubbing feature (and wonder why it doesn’t at the very least snap to the end/start of intervals when you get the cursor close enough, and then afterwards wonder why your power file is still the original workout length rather than the time you completed…)
- Don’t start the workout
- Just stop pedalling (with autopause off)
- Hop off the bike
- Reduce the intensity to the point it’s not targeting the intended energy systems
- Switch to resistance mode
And just like in a race, the only thing keeping you going is willpower. Not sure how making the workout player less sucky (hate to say it, but after using Zwift for custom workouts I just can’t go back) is suddenly going to change things there. Not like it’s going to turn the pedals for you!