uint32 bStartAtSecondKey: 1
If bStartAtSecondKey is true, remove keys 1,3,5,etc. If bStartAtSecondKey is false, remove keys 0,2,4,etc.
uint32 bStartAtSecondKey: 1
If bStartAtSecondKey is true, remove keys 1,3,5,etc. If bStartAtSecondKey is false, remove keys 0,2,4,etc.