ReadOnly: Boolean;
The ReadOnly property determines that tab elements are availably only for view.
If the property is set to True, all tab elements are read-only, editing is not available. If the property is set to False, editing is available.
The default value is False.
The example of use is given on the plugin page: Adm: OpenNavigator.
See also:
IUISecManagerTabParams | IUiSecManagerParams | OpenNavigator: Adm Plugin