Sidechaining in Zebra (outside source audio)?

[rla]

Are there any modules/parameters that accept outside audio as a sidechain source? I'm using Logic X.
Perhaps I'm not asking this very well...

[aaron aardvark]

This may not answer your question, but I believe the latest issue of Future Music magazine had an article about sidechaining synth stuff. I was reading it yesterday in a book store. I think the issue may have had at least one Logic related article also.