TinyMCE Rich Text Editor 1.0.0-beta - How to add css classes in dropdown

MODX : 2.3.2 (French)
PHP : 5.4.37
MySQL : 5.5.41
TinyMCE Rich Text Editor 1.0.0-beta

Hi,

First, thank to theboxer for this accessible, sleek and ergonomic version of TinyMCE.

I encourage everyone to donate to this great project "Accessible MODx Manager.", like I did.

http://a11y.modx.com

Here my question, how do I add css classes in dropdown?

Does anyone can give me an example?

Thank

Hi same question for me... can we add custom css selector to the TinyMCE Rich Text Editor ?

UP! Did someone can help?