Hi guys
I finally found a very simple way to switch from EXT1 to EXT 2 , engaging WAH block at any defined volume of the EXT 1 pedal , by simply using the snapshots.
Snapshot 1 is activating vol block EXT 1 , snapshot 2 is activating EXT 2 WAH block on .. In order to make the HELIX understands that there is a swap between two pedals , you must insert a cable on EXT 2 during the config step . Then you can remove it after saving your config ...That 's it ...