jaanquito

Hi everyone.
I wanna buy a footswitch FBV EXPRESS MKII, I know what with the buttons A to D change the effects banks, but i would use this footswitch with my spider V 30.
My question is, With FBV EXPRESS can you select and unselect the integrated FX in the amp, in other words, active the reverb or distort?

Hi everybody, I have a spider V, but i wanna buy any footswitch for it, and on the web I found some of second hand. 
I found:
- Shortboard MK1
- Old floorboard
- FBV express mk1

I believe those aren't incompatible with spider V, but these have the same connector what footswitch compatibles, Why are incompatible?