I know this is a little OCD, but now that I've tricked out my vim and tmux configs, I'm curious if it's possible to collapse the empty vim cmdline when not in use. It just sits there taking up a precious line of vertical real-estate!

[![Vim cmdline being a total space hog](https://i.stack.imgur.com/SU94a.jpg)](https://i.stack.imgur.com/SU94a.jpg)