The ContextMenuObjectFromID(ObjectType,ObjectID) property determines the object that hosts the context-menu, such as element, link, pool and so on. The ActionContextMenu event notifies your application once an action occurs within the object's context menu. Use the ContextMenu property to provide a custom context menu for the objects on the surface. Use the AllowContextMenu property to specify the combination of keys that allows the user to open the object's context menu. 

By default, you can provide a context-menu for the following type of objects:

• surface. The ObjectID parameter is ignored. The ContextMenuObjectFromID returns a reference to the surface object itself.
• pool. The ObjectID parameter indicates the identifier of the pool as returned by the ID property of the pool. The ContextMenuObjectFromID returns a reference to the pool object with giving identifier.
• lane. The ObjectID parameter indicates the identifier of the lane as returned by the ID property of the lane. The ContextMenuObjectFromID returns a reference to the lane object with giving identifier.
• selection ( of elements ). The ObjectID parameter is ignored. The ContextMenuObjectFromID returns a reference to the Elements collection.
• link. The ObjectID parameter indicates the identifier of the link as returned by the ID property of the link. The ContextMenuObjectFromID returns a reference to the link object with giving identifier.
• element. The ObjectID parameter indicates the identifier of the element as returned by the ID property of the link. The ContextMenuObjectFromID returns a reference to the element object with giving identifier.