In emacs, at least, every command has a name. Anything you'd like to do can be searched using tab completion and a little guesswork, at first, by typing `alt-x` followed by the first couple letters of a plausible name for the thing you are trying to do.

It's an extremely clumsy but totally workable way to get around if you only rarely need to edit a text file on a remote server. For example, if you highlight a section of text, you can `alt-x comment-region` and emacs will automatically insert comment markers at the beginning of each line (`uncomment-region` to undo the process). Or `alt-x save-buffer` to save.

The myriad keyboard shortcuts are just aliases for the named commands, so it's a straightforward transition from the clumsy tab-complete workflow to a more efficient one once you know your way around.