Get the object (or handle) of new objects created using WBlockCloneObjects

I created new entities in a file using WBlockCloneObjects from a different file.

I have a collection of objectids from the source file.

Once I pass this collection to the WBlockCloneOjbects is there a way to get to the objectids (or handles) of the objects cloned into the new file? I need to change the layer on each new object.

Thanks in advance,
Mike