Finally I have find the answer to my question here. Seems like the WordPress Team forgot to add the TinyMCE4 ‘code’ plugin in the WordPress 3.9.1 release. Well, thanks to all!
Finally I have find the answer to my question here. Seems like the WordPress Team forgot to add the TinyMCE4 ‘code’ plugin in the WordPress 3.9.1 release. Well, thanks to all!