>Two requests. First, any chance there can be a beep ..for each button press?

Yes, just turn on/up the regular Empeg beep feature.
That is really the only way for the beeps to be even close to being synchronized with the button actions.

>..the button codes display .. show both the pre and post?

Not enough room on the screen. And I think it would be WAY too much code/effort for a non-feature. For debugging, just connect up the serial port and look at the echo-back of the codes that worked. That'll have to do (and it's pretty good).

Cheers

-ml