Some workouts will insist that you stay seated, stand, ride the hoods, drops, tt bars etc for periods of time.
This is accomplished through flashing a short message on the screen. However, if you miss it because your head is down or you’re looking elsewhere, have no idea you were supposed to be doing it.
Workout construction should let creators dictate which position the rider should be in for the current block and it be persistently visible to the rider while doing the workout at any time.
Cheers,
Ryan