This problem begs to think larger. Instead of starting with "we are missing these two critical features that the rest of the world has expected as standard sin

This problem begs to think larger. Instead of starting with "we are missing these two critical features that the rest of the world has expected as standard since the dinosaurs perished", it might be interesting to ask "what sort of emacs language features would make it the best in the world!" It is far easier to get a minimum product out when the eventual goal is the stars.