Workout new step details

I have been using a Forerunner 935 for many years as my bike computer, and it's worked fine. I just got the Edge 540 which is great but one thing doesn't seem to be working with workouts:

When creating a workout in TrainingPeaks I can put in a title or description for each step of the workout. On my 935 this would then appear at the start of each workout step, along with the duration of that step. For example: "Sweet Spot @ 80-90 rpm" would appear along with (say) 10:00 for the step duration.

However on the Edge this doesn't appear. The same workout will say "Custom", include the power range, along with the duration.

I have checked with others and it seems other watches (Fenix) display the same as my 935, but no Edge models I checked include that title / description.

Any idea how I can include the title / description form the TrainingPeaks workout?