I can't tell where things are going wrong obviously, but the key things to remember are that you've GOT TO REPLACE THE FigDef IN THE HAP TEMP FOLDER WITH YOUR EDITED VERSION.
Also that you EMPTY AND RESTART fullBod again (don't shut it down or you'll lose everything, use the 'empty' button on the console) - ONLY USE THE herStartUp.hap to get her going like I said, because if you start the .htr file from scratch you'll only wipe out your changes as it will start from fresh.
I've tried doing it as I have described and it works fine.
Replace the crouchSwitch with the new text, IN THE EXACT SAME POSITION, DONT remove any of the "}" symbols that surround it.
lol, who'd of thought it would be so difficult to get someone to sit down!
Glad the haps are working out, most welcome all!