Many peoples use RTL language on our forum and there is problem in the editor while writing text. Often text goes off-balance and right alignment is not the solution. We need two language direction buttons in the editor to support both languages. A custom [RTL] bbcode works but after the post is being made, so while writing text in editor still remains the problem.

I think a simple two buttons like in MS Word can help many peoples out there. Please consider this in next version.

With 4.0 you will be able to install CKEditor plugins directly. Thus you would just install this:

http://ckeditor.com/addon/bidi