Sorry Garmin, but is it possible that you can't work on a decent workout part? Still there is no possibility to select and set a field with the cadence foreseen by the training, there is no possibility to return to a phase at our convenience, but in short, you dedicate yourself to many contour things but in these updates there is less and less of substance.
Do as everyone does, copy the workout part of Wahoo, or at least take a cue from it.