Hi Mike,
NI Support #*$)(!??? ....
as I see it's possible, but for sure with some restrictions. I think you mean Tags instead of Banks, right? If not you can handle the Tags like banks.
So, it must be possible this way:
Follow my description above (use the existing Live project I've send to you).
for example:
• go to the GR browser create 2 Tags, one named "FX01" the 2nd "FX02"
• in each case drag two or more existing sounds, from other Tags, into FX01 and FX02
• GR4: goto -> "options" -> "controller" - and on the first controller (controlled by "Live clip1" of my LiveProject) then choose "menu" -> "tag selection" -> "jump to" -> "FX01" and on the second controller you'll choose the same way an "FX02" on the end.
• Now you must be able to switch between your two Tags (or call it banks)
• the third & forth controller you can configure as "Preset selection" -> "previous / next"
the restriction is that you must lock your controllers. You can't select the sounds in your selected Tags directly. You have to use the previous / next function to switch between the presets (maybe there is a way to map all tagged sounds. But it's quite complicated and I don't really understand how GR4 handles the midi implementation - but what I know is that it's not really logically... for me ... )
Hope this helped ... a little
Tim