How to add tinymce /WYSWYG Editor to Activity Post Form

[Ben]

Hi ,

I need to add rich text editor( CKeditor / Tinymice /WYSWYG editor ) in activity post form or in group instead of the actual textarea.

This Link that i had already tried it gives me only the add image button instead of full tinymce or WYSWYG editor and i try to post that image or content it doesn’t post on wall .