Choose Styles from the Document menu to list the stylesheets for the current document.

Select the stylesheet.

To rename a stylesheet, click Modify. Type the new name in the Style Specifications dialog box and click OK.

To delete a stylesheet, click Delete. Then click OK to confirm the deletion. Text that was formatted by the stylesheet retains its current format.

To create a new stylesheet based on the selected stylesheet, click Duplicate.
The new stylesheet has the same name as the original, with ".1" added to the end and any keyboard command character removed. You can rename it as described in step 3.

Click Done when you're finished.