[Running Ubuntu 14.04, Unity] So, I have workspaces enabled and all that jazz. I know one can set some option so that Ubuntu defaults to more than four workspaces—but that's not what I want. Currently, I'd like a fifth workspace, but only temporarily (that is, I don't want it to be the default that five open. I just want it for today, and possibly w/e other day I need it). Is there a way to do this?