15 July 2010 at 9:33am
Well, it sounds like the option is being set at least.
Beyond that, I'm afraid I won't be of much more help.
15 July 2010 at 10:00am
Okay, so I've tried it quickly myself.
"setup" is definitely being set, however, you're correct that as soon as you have any value in there it produces two errors in the CMS;
f is undefined - tiny_mce_src.js Line 9365
tree.setCurrentByIdx is not a function - LeftAndMain_left.js Line 26
So, it could be a conflict between TinyMCE and one of the many other scripts, and that's way beyond me, sorry.
Perhaps there's a better place to fire a setup event?