Workout timer

I have a workout saved on my device that is all time based, i.e.  plank for 1min, rest 30sec, sit-ups for 1min, rest 30sec etc. When I use my instinct 2 for this workout there is no countdown timer shown for the planks/sit-ups (as in a timer that counts down from 60sec to 0sec). But when I get to the rest stage, there is a 30sec countdown timer. Anyone know how I can get the watch to show the countdown timer for the exercises, not just the rests?