The Test Container’s Edit menu has a Properties… option. If you select this option and if a control implements the ISpecifyPropertyPages interface, the container will display the controls property sheet and the included property pages.
If a control does not support the ISpecifyPropertyPages interface but does support aggregation, selecting the Properties… option from the Edit menu will display extended properties of the control in the Test Container.
Below the Properties… option in the Edit menu will be any one menu option for each object (OLE) verb that a control may support.