Not as far as I know - but changing your multi by reconfiguring it (ie patch changes for all 16 channels plus volume/pans, etc.) may not be particularly inefficient compared to changing using the virus interface. I mean inefficient in terms of how quickly the virus changes everything - it would be a pain in the arse to sequence I think. It does open up avenues in terms of gradually changing sounds rather than all at once, however (especially when you take into account that you'd have to lay off sending notes to the virus if you changed multi preset).
Also, I often don't use all 16 slots - in fact, far from it, so maybe you can double or even quadrupel up on your channels?