https://resources.arcgis.com/en/help/arcobjects-net/componentHelp/0038/0038000000rv000000.htm
ISpotPlateCollection.Count Property (ArcObjects .NET 10.1 SDK)
countpropertysdk
https://resources.arcgis.com/en/help/arcobjects-net/componentHelp/0038/0038000000s1000000.htm
ISpotPlateCollection.SpotPlate Property (ArcObjects .NET 10.1 SDK)
propertysdk
https://resources.arcgis.com/en/help/arcobjects-net/componentHelp/0038/0038000000s0000000.htm
ISpotPlateCollection.RemoveAll Method (ArcObjects .NET 10.1 SDK)
removeallmethodsdk
https://desktop.arcgis.com/en/arcobjects/latest/java/api/arcobjects/com/esri/arcgis/output/ISpotPlateCollection.html
ISpotPlateCollection (ArcObjects Java API 10.4)
java api