1-go to an unused setlist on the hd500 to save your 11R rigs controller preset there.

2-connect a midi cable from hd500 midi output to 11R midi in

3-in my case I had to do nothing referring to bank up and down programming... the bank fs worked as expected

4-double press the move button (i think... or maybe is the enter button). That will take you to the midi assignment for the footswitches. So with the 11R manual on hand assign to each fs the right channel according what you want to control with it.

Is very simple... sorry I cant explain it better.

The HD500 makes a very nice controller for the 11R: volume, wha, tuner, tap tempo, bank up and down, channels on each bank, effects on each rig... cant think of any additional function the hd cant handle.