treadmill workout

so when I use the treadmill feature, it makes me adjust it manually after an interval. and I gotta manage both the treadmill and the app. (I dont use my watch on the treadmill)
so for example:
lets say its a 200m interval on the mill at 6.2 mph. since my treadmil is on mph I set the speed just as the app tells me and follow along until it hits 0. but then for my rest it keeps it at the 6.2 mph. can it automatically after the rep for the rest be set to idk 3.5? and then when its time go up to the suggested mph