Roll program in Vizzy

I'm working on an own auto-orbit program, but I did not manage to figure out how can you write a roll program in Vizzy. This problem mostly comes down to the fact, that you can't read your roll position from the game.
I tried to integrate my roll position from my angular velocity: p=p+dtVa360. This solution has to mayor flaws. 1: angular velocity doesn't include direction (it can't be negative).
2: You have to make your own ticks, which makes the estimation really inaccurate (0.001s worked best for me).
Is there a way to read your roll position from the game by some script, or a custom command? To me it seems like that would be the only feasible solution. It would also be cool, if there was a special while loop which is synchronized with the real game tick and always returns the time difference.