Oh just a way to bake multiple objects / batch bake things. IE slot 1, High object / low object(s) / cage and maps settings, slot 2 same, and so on...Hit Bake and let it run in the background. I have 2 computers at work so I can queue lots of objects and let it run in the "background" or at night for heavy meshes.
@JedTheKrampus Thanks for the link! MightyBake is a hybrid GPU/CPU baker. Currently it uses both. I got OpenGL running on Linux, so it will be hardware accelerated.