Question/Feature Request: chord keybindings? #7

It seems that the keybinding system only supports "simple" keys: a single key, optionally with a single modifier (C, M). Is that correct? I tried to define chords and multi-key bindings but they didn't seem to work.

In a lot of editors, Paredit keybings in particular tend to be either chords, e.g., C-M-f, or multi-character strings, e.g., C-c C-M-l, C-M-p C-M-r.

In addition, some of those editors use additional keys beyond TAB and RET: up, down, left, right, home, and end for example.

Is expanding the keybindings to cover those cases on the roadmap?