Great customizable app!

This is really great - I can keep track of a lot of things in different categories exactly how I want to keep track of them. Some suggestions:
1.) With the rolling numbers (0:00 input screen), can you make it go all the way around, for instance start at 0 but you have the option of going forward to 1 minute or backward to 59 minutes? Right now its a little inefficient.
2.) Can you make a way to do calculations with gathered data? For instance, I keep track of how much time I spend studying Chinese each week, and its tedious to add each days times up myself. Can there be options for total/time or how far away you are from your goal/time for different categories, and some page with those results on it? Thanks!

frant2ra about Symptom Tracker by TracknShare, v6.4.3