Add or remove a view configuration in the Drawing Style Manager to or from the manual cut view and callout view lists to obtain a clean list, containing only the preferred requests that you can use throughout the project.
The option is a checkbox located at the view request level of the Drawing Style Manager, in the View properties tab. Enabling or disabling this option has no effect over the drawing result, but only acts as a filter for the manual cut view and callout combo-boxes.
Once you finish the configuration, the view combo-box available in the manual cut view and callout Settings dialog will only display the preferred view requests, in a shorter list. Also, categories that have no views selected will be removed, making the list cleaner.