Hi, sorry I am not understanding exactly. In my mind slope mode and resistance mode are the same just different unit of measurement but I am not sure if that is actually true and especially not sure for a specific trainer. What happens when you use slope mode and shift to set power targets?
Here I show how I design shorter efforts in slope mode
https://forums.trainerday.com/t/example-of-a-hiit-4-second-interval-automated-slope-mode-workout/