I would love to see an option where substituting a movement in the training program or within an actual workout when training a client on my app live with a client can automatically fill in that movement in ALL of the upcoming scheduled workouts under the same name.

Example: Workout 1, scheduled to be repeated on Mondays for 8 weeks.
Superset 1:
1a) Goblet Squat
1b) Pull-up

Superset 2:
2a) Dumbbell Bench Press
2b) Barbell Romanian Deadlift

I learn in the first session that a dumbbell row would be a much better option for this client than the pull-up, so I would like to be able to sub that movement in live while training them and have an option that pops up, saying "substitute for all upcoming workouts." and I select that, and now for the next seven weeks there is a dumbbell row instead of a pull-up and all the same sets, reps and rests are still followed. Or to have the option to do this from the training program/master program page on the computer as well.

Currently when a client needs a movement substitution, I have to write down or screenshot my entire progression of the workout that movement appears in, delete them from the calendar, edit the entire workout in the program, re-schedule it to all the Mondays, and then go back to the progression spreadsheet and change all the sets and reps AGAIN. It's a massive hassle, and as my business grows and clients continue to need different customizations, it's a dreaded task.