Hmm. Page 66 of the owners' manual seems to suggest that you can adjust Attack, Decay, and Release for the "real time" keyboard parts. Nothing about sustain, but depending on the base sample, the sustain may be determined by how long you hold the key (or how quickly you strike it.)
Oh, thanks a lot Ted! How come I missed that page?????
Well, perhaps even when I read it I wouldn't know it
I need to get used to new arranger technology and advance editing features.