How to: Add border around single letter or word.
Solution:
Position the insertion point where the boxed characters are to appear and add an equation field with the '\X' switch followed by the text in parentheses.
1) Position the insertion point where the boxed text is to appear.
2) Select the 'Insert' menu and select 'Field...'.
3) Select 'Equations and Formulas' from the 'Categories' list box.
4) Select 'Eq' from the File Names list box. (EQ appears in the Field Codes text box.)
5) Type the following in the 'Field Codes' text box after 'EQ':
:\X<text>
(where <text> is the word or character to place a box around)
Field Codes text box
6) Click 'OK'.