Sequencer drived by external commands

[watermelon]

Hi all,
I use an external nanocontrol2;
on kronos,in basic /controllers ,i can set only one commands : start/stop,but it's pretty poor,why can't i set the others commands?
eg:cc 45 is for play/stop (works) but ,cc 44 for record...up to 49,including forward,rewind,stop,loop ;aren't implemented,why?
can i get all these missing commands by using karma?if yes,how to do that?