As discussed over at the Behringer Forums (Hi Howard!) I have created a Stream Byter module that will convert an incoming MIDI clock signal to control the tempo of FX in this unit.
This scene, 'XR18' is now available in the Scenes Club for in-app download. It uses MidiFire's internal clock, but you can of course pass an external clock into it and then on to the hardware unit.
By default it is configured to set the tempo of the stereo delay, but you can change the parameters it controls by adjusting the constants set at the top of the rules inside the IF LOAD/END clause as follows:
ASS K1 = 31 # fx number 1-4 (hex 31-34) ASS K2 = 32 # para 1-X (hex 31+)
If you want to control different fx/parameters as per the Behringer specification you can (for example) make changes similar to the following:
To control FX number, 2 you would change K1 to 32 To control parameter 1, you would change K2 to 31