Hi Guys,
Okay, saw the chap in the “tips & tricks” video merging a kick drum from Beat Agent with the kick in Acoustic Agent…go on then…give me a clue??? What am I missing here? I can’t get the two kicks to fire at the same time from a midi pattern or the keyboard. 
Hello Gannet… I guess you are speaking about from 4:25 in Video 1 of Acoustic Agent Tips and Tricks… https://www.youtube.com/watch?v=4pJMhKezgWI#t=266
Yep, banged my head also trying to figure-out how he did it… But it looks like he had a midi clip in Cubase feeding an Acoustic kit in Slot 1 of GA4… Then load a Beat Agent kit in slot 4 (Or I guess any slot), then change the midi input channel (above the tempo display) to the same channel as the Acoustic Agent in Slot 1 (Channel 1), then you can merge different kit pieces… I guess.
But I know that is not what you want (like me)… We want to have that ‘Auto Complexity’ thing feeding Electro and Hybrid kits in Beat Agent… Right? 
Yeah…damn right RajahP 
Recalled seeing the “solo” on the kick pad lit in the cold light of day when I was miles from my rig 
Will have another fiddle in a bit but am bushed.
Thanks for the input, much appreciated 