Text Tool - Superscript and Subscript
Buttons
These buttons on the Text Tool Infobar set the superscript and subscript attribute to text., this results in text which is about half size. Subscript is the lower button and places the text at the bottom of the text line, whereas Superscript (the top button) places the small text at the top of the text line. For more information, see Making text superscript and subscript.