How Increase and Include a Number Generator value into Ticket Tag

Hello everyone, I have the next problem: I need to print one of two different type of bills. The first one need a number like “B###-####” and the second one “F###-####”. I’m trying to asign a number generator as a ticket tag, before execute print job. Every type of bill has its own number generator, so, how can I increase the number generator and put its value into ticket tag, I supposed I have to create two Actions.

If you have separate ticket types you can assign individual number generators for them.