Apply Change Create Or Delete Style. However in the context menu for the Styles pane it seems that Revert to H1 is the option you should choose. Custom templates always appear in My Templates in the template chooser.

In the template chooser Control-click the template name then choose Rename or Delete. Open the theme chooser. Also in programming change denotes something that is yet to be persisted saved to the database or file while update denotes persisting the change.
In the Modify Cell Style dialog box under Style Property select or clear the check boxes to choose the style formatting and then click OK.
To modify a default style right-click a control on the Form Designer and select Edit Custom Style. Click the icon to remove the property from the style. You can change this shortcut. In computer programming create read update and delete is a software architectural style regarding the four basic operations of persistent storage.