How to set up to play SWAM instruments with MIDI Guitar 2 WITHOUT a breathcontroller!

I got this question this morning, and as I remember having been asked this one in particular before, i figured this just might help someone else too, so here goes: a simple suggestion on how to set up your MIDI Guitar software to use AfterTouch (AT) as expression controller data together with your SWAM instruments. It works for any instruments of course that can do anything with Aftertouch; Windsynth RESPIRO, or Reasons Friktion perhaps. There are quite a few synths that can benefit greatly from the addition of expression data to the mix.