if there was one area you wanted to create an API for make it the pushback
It might be more useful to us, to know what you would like to add to Pushback.
Yes, we know pull is not supported and it will eventually come, but having an API won't solve this so, if your need for a pushback API is because you feel some part of the procedure flow should be changed, we'd rather doing it ourselves, to the benefit of all users.
