Bc2000 (for the BCF2000 & BCR2000)

Is it possible to make the Encoder Group buttons function like shift buttons.

Right now I have this functionality in Cubase by using a combination of the transformer plugin and cubase's generic remote, but I was wondering if I could do this right from the BCR itself.

The way I've gotten it to work inside cubase is to have a transformer plugin that changes the channel of incoming data from my BCR.  So if I have one button that transmits on Chan 16 CC 1, when I hold down my shift button (which activates the transformer plugin) the data is changed to Chan 15 CC 1.  I was hoping there was a way to do this entirely in the BCR.  I have a BCF2000 running in Mackie Mode (which has shift buttons) so I suspect this is possible.