If you search the knowledge base for gpost prodution Processors there is a post for a FP4A with a dialog 11 control available
We had a FP4A but it had a Hurco control so that wouldn't help you and I believe I deleted it after we sold the machine.
Sorry, I can barely handle my own post processors. If you ask your questions here there are some very good post people on here. If you want to try and tackle the post yourself there is gpost documentation in the load point.
C:\Program Files\PTC\Creo 4.0\M050\Common Files\x86e_win64\gpost