Bc2000 (for the BCF2000 & BCR2000)

Hello all

I've customised a BCF2000 b-control mode preset emulating Mackie 
control mode which I found in the group which I use with Ableton Live 
in Mackie mode.  I'm trying to understand how multiple button 
presses, i.e. shift+button, are supported by the Live 
implementation.  

Sniffing the BCF in Mackie mode I can see firmware handles shift key 
modifications of target midi note values, but in b-control mode I 
also see note on sequences that perform different functions on the 
target button, e.g. using the EXIT button to modify the function of 
teh STORE button defined in the preset as starting (STORE) or 
stopping (EXIT+STORE) clip playing.

The preset I'm playing wiht is Mago's MCE.  I'd like to squeeze 
another couple of multi-functions out of a couple of controls, if 
possible.

Any help much appreciated.

Cheers
David