Is there a way for adding my own styles into the dropdown in the Insert table editor?
Are you referring to the "class" field?
I suggested a solution in a different thread: http://world.episerver.com/Modules/Forum/Pages/Thread.aspx?id=76138. There is no indication if it actually solved the problem, but you could give it a spin
Alf: Yes sorry the class field.
Erik: Perfect, works like a charm thanks!