i am some sort of a "heavy user" of the experiment-js and experiment-css options. mostly, editing is really a pain, because:
- the overlay is on top of the current variation
- applying changes therefore is not directly visible
- but the editor is not using full-width although there is nothing more to see in the background ;-)
- opening the editor takes to many clicks ( yes, i am lazy ;-) )
Why do you not add tabs to variation-ja-editor to allow an easy switching between code? Or implent an option to use the experiment editors in some sort of a sidebar? screen-width for developers is much larger than the common websites with its 1280px standards ....
Maybe this is interesting for you