Using the Apply Style list
After you have used a style at least once in a document, the style name appears on the Apply Style list at the left-hand end of the Formatting toolbar, next to the Styles and Formatting icon.
You can open this list and click once on the style you want, or you can use the up and down arrow keys to move through the list and then press Enter to apply the highlighted style.
 | Select More... at the bottom of the list to open the Styles and Formatting window.
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The Apply Style list on the Formatting toolbar.