Need Help! BobCAD V25 - Creating Sub Routine Programs

HI, I just bought V25 about a month ago and am very happy with it. I was curious about making some Fanuc style sub programs but can't find much information on it. I'm guessing that I have to create a sub routine post but thought I would ask for help here first. Has any one used V25 for creating sub programs?
Thanks...
OP