Paul,
I hope you will add this gentleman's request to the wish list to have a push category in your software. I have posted this request in the wishlist category on this forum.
Airtran and Air Wisconsin both are paid from the door close/push, not by block. I don't know what other airlines do this, but I'm sure most will follow this trend eventually. By not logging pushback time, the company saves itself on 30/7 issues, etc. If you look at the legal definition of block/flight time in the FARs, it states flight time starts from the time the aircraft moves under it's own power.
Please give serious consideration to adding a push category to the software.
Thank you!