Is there any easy way to do simple subscript and superscript text in Apple (Cocoa?) apps? Specifically, TextEdit and Keynote, as the subject suggests. <BR><BR>Currently, in order to do subscript, I ...

Keyboard shortcuts for text formatting involve holding down two or three keys at a time to alter the appearance of text.

The title says it all. I have tried to make a keyboard shortcut for them (like ctrl-b for bold) but it didn't work.