Export Queue (Render in batch)

Take Reaper for example. I can open the batch window and select several projects to be automatically opened, rendered, then closed one after the other and all export/render parameters can be set from the batch window. It is really useful to render all variations (wav / mp3) of all .songs or .projects in a row and leave the computer to do it by itself without needing to be sitting in front of it waiting for each process then manually starting the next one. Or when there are really long files to be rendered I can just go home and the next moing I will see everything is already exported for me.