Archive/Add Label to Entire Thread at once?

Archive/Add Label to Entire Thread at once?

I like the ability to view emails as "conversations" like in Gmail. Once in conversation view, is there a way to either archive or apply a label to an entire thread/conversation at one time? Or do I have to select each email individually to label it?

The benefit of a "select all in thread" to label or archive is that it would label both the sent and received emails at the same time without having to switch back and forth.