How are interval sessions shown?

An interval session shows its rep splits keyed to the structure that was prescribed, with a Reps and Kilometres toggle so you can read it either way. Vertical gain and downhill load each get a row of their own, because descending is counted on its own rather than folded into the climb. The prescription for a session also states the terrain it is meant for (trail, road, track, mixed or indoor) and roughly how much climbing it carries. Run-walk and Long walk are session types in their own right.