@MS_1998 you could use just manual laps, or you can use the Suunto + app for hill reps which gives you a bit more specific hill info both during the activity and after. I.e, on each rep you can see your average GAP, altitude gain and instant HR, and after the end of the rep I think it’s a summary of altitude gain, time taken, GAP, average HR as well as HR currently during the recovery.