Open/save multiple workspace windows?

Sometimes I find it useful to have two or more Bridge windows open at once.

I havent been able to figure out how to save such a configuration or load. The only way it seems is to open the first Workspace, then create the other one(s). Then do it all over again if (when) Bridge crashes.

Is there a way to open and save multiple Workspace windows at once? I'm using Bridge CS4 on a Mac running OSX 10.6.8.