I have a Spider IV 75 Watt amp and an FBV MK II Shortboard, and also have the Line 6 FBV Control software install on my computer. When I connect to the FBV MK II Shortboard with a USB cable, I can bring up the FBV control and change the functions of the individual footswitches. Say for example, I wanted to assign my Function 1 footswitch to assign the MIDI CC 7 to 5. So I set it up as below in the software.
When I go to the Shortboard, I click the Function 1 footswitch and the LCD display on the shortboard displays "CH 1 CC7 VAL5", so I know that it has accepted the setting. Then I plug out the USB connection, and the pedal shows it's usual display (when connected to the amp)... And the Function 1 footswitch goes back to working with the original settings that it came with ... :-(
I've read somewhere that when you plug it in to the amp, you are limited in what way you can change the functions on the FBV Shortboard. Is it possible for me to reassign the footswitchs when using with the Spider IV amp?