For your information, you can write either subscript or superscript at a time. If you want to write either of them, select a text you want to translate into superscript or subscript and press Ctrl+1.

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

In the resulting Home tab list, highlight Subscript (or Superscript) and click Add. Click OK and Office adds the font effect to the QAT. If you’re using Word or PowerPoint 2003, you can add the ...