1.5 question

[lighttch]

I've upgraded to 1.5. I have a question about the transitions. I have mapped A to the less than sign and B to the Greater than sign. What I want is when I press < the crossfader will transition A and stay there; and when i press > the crossfader will transition to B and stay there. Right now when I press either < or > the crossfader will transition to the appropriate location, but when I release the key it returns to its previous setting.

thanks,
Andrew