@npole. Perdix Dive Planner on the surface allows you to calculate what NDL would be based on SIT, average depth and time for next dive. And, a deco schedule based on that input from the user. Once you start the dive it will give you acutal on-the-fly info on what actual stop schedule is as the dive progresses. Hope that helps.
Thanks, I figured it out from the previous post. It wasn't mentioned (or I couldn't figure it out) from the manual, so I never checked that page during the dive. I'll try it next time.