The below screenshot shows Neo-tree opened "netrw style" (:Neotree position=current). When opened in this way, there is more room so the extra detail columns can be shown. This screenshot also shows ...

Then open a directory with nvim .. Use <CR> to open a file/directory, and -to go up a directory. Otherwise, just treat it like a normal buffer and make changes as you like. Remember to :w when you're ...