Oh, I see, thank you. As I understand buffer name isn't the same thing as file path/name. So I can't really open file by pasting (Ctrl-r +) it path anyway, can I? Also, I only understood how to switch between buffers using that separate screen, not like "next/previous tab", and there isn't any panel that would show which tabs are opened now. But I think that's solvable, at least.