For me, `:wq` saves the current file and attempts to close all buffers, though thankfully asks if other unsaved buffers should be saved before closing.

I was wrong about `:e`, it does work.

Instead of `:set nu` I'm using Alt-X UpArrow+ to find `display-line-numbers-mode`, which does what it says. But there are other settings which I have on muscle memory macro that do not work, such as `:set wrap!` which I use often with my portrait monitor.