I will admit I am not really the best with all this stuff but to explain.
A useful function would be Virtual LED and function, LEDs and functions without any pre arranged usage, these could be called via a macro or set by a button. and pin set in the I/O page.
Why: At the moment you can address individual ports and pins by the set command, and like wise get inputs, how ever with virtual LED anf function, the macro or button can call the virtual, which the user can then direct to a specific pin, with out needing to edit or create a macro.
Best Regards
Ross