After the upgrade to 3.1, it appears we have lost the ability to use the "class" dropdown on the "insert/edit link" pop-up box (available as of 3.0). The new functionality to link to your own pages is great (been looking for that for a long time)!
But, it would be great to turn the class feature back on, as it was used to highly customize link and button classes vis TinyMCE previously.
Any way to do it that I'm missing?