OnFlatViewChange

The OnFlatViewChange event can be implemented by a script add-in to receive notification whenever the user changes the display mode in a tab.

Method Name:	OnFlatViewChange
Argument Type:	FlatViewChangeData
Return Type:	none
Description:	The FlatViewChangeData.tab property identifies the tab, and the mode property identifies the new Flat View mode ("off", "grouped", "mixed", "mixednofolders").