Hello   Is it possible to use the Helix hx effects to switch between all four channels on a ENGL powerball amp? I have previously had problems with channel switching when using a Carl martin octa switch. When using this I can only switch between clean and crunch channels when using a mono jack. When I use a stereo jack I can switch between crunch and lo-gain, but I want to be able to switch between clean and lo lead (can't even access the hi-lead channel). Is it possible to choose any