Ah ok. I guess the easiest solution, assuming you have an easy time dealing with external appvars, would be the hybrid TI-BASIC approach. There's also a way to turn programs into appvars with Tokens IIRC as well as Doors CS 7, to avoid having to clutter the PRGM menu, but both ways either requires Celtic III or Doors CS 7 to be installed on your calculator.
At least hybrid TI-BASIC is good for one thing
