Starts an option selection sequence (i.e. a selection sequence where the Shift
key was pressed).
Notes to Inheritors: Subclasses can override this method to be notified at the beginning of an option selection sequence.
Overriding methods must still call base.StartStandardOptionSelection()
for correct behavior.
PSelectionEventHandler Class | UMD.HCIL.PiccoloX.Events Namespace