| siCurrentHistory |
[0] Duplicate final resulting geometry of the source object |
| siOriginalHistory |
[1] Duplicate the original geometry of the source object (not implemented) |
| siDuplicateHistory |
[2] Duplicate whole construction history if the source object |
| siSharedHistory |
[3] Share the construction history of the source object such that changes to the source object effect the copied object (same as instance) |