If a style is missing from MS Word Styles Pane
You may need to modify a style in your Word document, but when you open the Styles Pane this style won’t show up. If you right click on a text that uses this style, the style remains invisible.
To modify a style that seems unavailable or protected, open the Styles pane (press the little arrow at the bottom right corner in the Styles section of the main Word toolbar (Home). When the Styles pane opens, press the bottom right button (Manage Styles).
When the “Manage Styles” dialogue opens you see the style that you need to edit. Activate the second tab (Recommend) and press the “Show” button in order to have this style always visible and available at the main Styles pane. This way you are able to modify it easily whenever you want.