Add a "Clear Formatting" button in the WYSIWYG editor

It would be very nice to see a button "clear formatation" on the WYSIWYG editor like in TinyMCE.
Sometimes when you're coping some content you dont want to get all the styling, but just the information itself.
e.g Try to past some content from WIkipedia. You must edit and remove every link it has to get only the text.

Thank you =)