I agree that a better text editor to control big blocks of text would be great but.. worst case scenario just use custom component as you can add all your breaks straight in there.
+1 on the ability to change text tags between types, even just giving us the dropdown with all the basic text types on it in case we need to change them from one to another would be great. After all, we can do it easily in a basic text editor, so we should be able to just as easily choose an alternative from a dropdown that will change them for us. :)