It's not very difficult to set up in Kontakt but you'll want to read the manual if it's not immediately intuitive from looking at the layout. However when combining stereo outputs with mono outputs there are hiccups particularly past a certain number (I don't remember, I don't have any use for this).
Personally I don't use Kontakt for very many instruments in one instance. Now I'd probably eschew it altogether, frankly. It isn't going to save significant CPU time unless we're talking hundreds of nkis or something. There are things I have which are not configured as multis in the folder so I would have a few in an instance that are articulations of the same instrument (like in the old days) but I'd just as soon use a folder that collapses and load them under one port but the several channels, as set up multiple outs from Kontakt.
That said I'll always use BFD3's outputs to VE Pro, as it's a very different sound (much more present/loud) this way.
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