We've got Uservoice powered support and so if you have any other suggestions it'd be great if you add them over there so we can better track which features to prioritise.

http://support.mailrox.com/

We've added one for this request and so feel free to upvote and make comments on what you'd like to see included in a future text editor:

http://support.mailrox.com/forums/163882-general/suggestions...