adds, updates, and invokes a named view.
View selection is done by pressing each button from the dialogue box.
When there are no selection items, saves the active view parameters as a named view. The dialogue to input the name will be shown. The new name must not be blank, and must differ from the existing names.
When a view item in the list is selected, the view parameters are replaced by the active view's.
The selected view item will be applied to the active view.
The selected view item will be deleted.
Changes the name of the selected view item. The dialoge to input the new name will be shown. The new name must not be blank, and must differ from the existing names.
[Named View] terminates the command.