Name	Description
_NewEnum
Count	Gets the number of items in the collection
Item	Gets the item in the collection at the specified index

Name	Description
Add	Adds an object to the collection
AddCustomButton	Adds a user command button to the collection
AddCustomControl	Adds a user custom control to the collection
AddToggleButton	Adds a user toggle button to the collection that shows/hides the given user interface element
Remove	Removes an item from the collection