Based on this question and this question and this issue, it sounds like Android basically doesn't have undo/redo functionality. (I guess? Correct me if I've misunderstood or if the situation has changed.)
My goal is to use a Galaxy Note 3 with an external keyboard to work on long-form writing projects.
I'd like to have undo/redo functionality.
Is there some way to "bolt it on?"
Like maybe is there a text editor that has undo/redo as a feature, or some app that lets you add it, or a trick you can do an automation utility or something?
(It doesn't actually have to be
ctrl-Z. Any reasonably convenient keypress would be fine.)