There is a firefox addon[1] that allows an external editor to be launched for a text area. However, it does not function with many of the advanced editors including the one on roll20. Allowing a way to visit the script editing page w/o the advanced editor would then allow this addon to work. This would make iterative development of scripts immensely easier. The way it works is that an external editor of your choice is launched. It initially contains all of the textarea's existing text. Each save in the editor replaces the textarea's contents with the editor's. In this way you could use any editor (eg. emacs, vi, etc.) to edit API scripts efficiently. Running in an external editor would allow additional dev tools to be leveraged as well (linting, etc.). [1] <a href="https://addons.mozilla.org/en-US/firefox/addon/its-all-text/?src=ss" rel="nofollow">https://addons.mozilla.org/en-US/firefox/addon/its-all-text/?src=ss</a>