I have my Line6 Pocket POD working nicely with Vyzex using my macbook pro.  Now I have connected my Akai LPD8 USB midi controller.  The rotary controllers work for a few of the Line6 and Vyzex knobs but not all of them. 

Ideally I'd like to be able to use the pad buttons on the LPD8 to switch on/off the toggle switches (delay drive on/off etc.) as well.

Can anyone help me customise the mappings so that I can make adjustments to more of the controls using my LPD8?  I have the LPD8 software which enables the customisation but I can't figure out what the settings should be.

Any help greatly appreciated.