Streaming out pcells to gds

Hi,

While I'm actively developing a pcell, it is useful to be able to stream out a gds directly from the pcell without instantiating it in another layout first. However, when I try to stream out the pcell using the CIW File -> Export -> Stream, the streamed out file is empty and the "Summary of Objects Translated" message to the CIW shows that zero shapes were translated. If I first create a new layout cellview and instantiate the pcell in that layout, I can stream things out just fine. Is there a way to stream out a pcell without first instantiating it in a larger layout? 

Thanks,

Mark