Sorry if this has been resolved/asked/etc. before, but; I can't seem to find anything that will prevent my MacBook from sleeping when the lid is open. I've tried Doze, and I've tried InsomniaX. I also know the risks of doing this, heat venting while closing is dangerous; I've acknowledged this. But there are times when I need it to be on while open, even for short periods like closing it to bring it from place to place because carrying it around while open doesn't exactly cut it when I need to sustain a connection (file downloads, etc.) tl;dr: How do I keep notebook on while closed?