Running multiples instance of D5 in parallel?

I was wondering if it could be technically possible to have multiples instances of D5 running in parallel ?

I’m often working on different projects in the same time, let say A an B, and, if I just render something in project A, and the client for project B ask me for something, I’m force to close project A, to load B, render something, and then reopen A to continue working on it.

Before I was working with Thea render, and every rendering was link to a sketchup instance that was running, and you could have as much sketchup running in parallel, which is really convenient.

So, I hope that D5 could provided such an interesting option.