how to change the etherpad's ace2editor to something else?

i see that on ./etherpad/src/static/js/pad_editor.js it's being called as,

  self.ace = new Ace2Editor()开发者_StackOverflow社区;

can I just include and call some other editor (like codemirror) ?

Consensus on the mailing list is that Etherpad and ACE are so tightly interwoven that this is probably hopeless for now.