I was building a rocket in Kerbal Space Program the other night, when I started to wonder if there was a quick way to view the total mass of a rocket. I was wondering this because each rocket part has a mass value when you hover over it. Of course, I could just add the up the total mass from each of the parts used, but that seems like a lot of work, particularly so considering the the 'throw stuff together' style of rocket building common to KSP.
Is there some easy method for viewing the total mass?