These items are listed under the Style main menu.  
 

Plain	A check by this item will type plain text of the selected Font.
Bold	A check by this item will type bold text of the selected Font
Italic	A check by this item will type italic text of the selected Font
Underline	A check by this item will underline typed text of the selected Font.
Subscript	A check by this item will type subscript of the selected Font.
SupErscript	A check by this item will type superscript of the selected Font.
Font Sizes	A check by a number will be the font size of the typed text.