Re-Logging Time

I guess i'm probably the only SL member who has to re-start my Release Candidate about three times each session!! It IS annoying and time consuming. However, it's bad enough to have to do that when the program crashes or freezes (more frequent, and doesn't count as a crash???), but why should we have to completely quit and re-load the whole program just to change avatars? Why isn't there a facility to log out current AV and return directly to the sign in screen?
I'll post this in technical as well!

Don't know why you would need to be multiple avi's so much but I think each identity has its own set of folders and virtual worlds of their own to load on startup. Once, LL fixes the asset servers, lag, asset servers, friends list, asset servers, and a host of other fixed and unfixed bugs that might be something to look at, lol what am I saying that might come before all.