I guess STextModels are now just TextModels.
Started playing around with a simple Decimal to Roman Numeral program, and found that I could now Drag a bunch into the World, and then load them into an Array.
After that it was just a matter of playing around until I figured out how build the commands. Note that, for simplicity, the TextModel array for the Roman Numerals was built during setup rather than part of the executable.
Note that .a3p files must be zipped to be uploaded?