How to export flattened gds2 in Astro

[eruisi]

I have the layout in Astro.
When exporting gds2 file and importing into Cadence IC50, I found all standard cells are blank boxes. I guess the reason is I don't have layouts of standard cells for IC50.

I think if I can export flattened gds2 file in Astro, no standard cell layouts are required then, but I can't figure out how to flatten the design layout in Astro.

Thanks a lot!

 

[jackson_peng]

smash the design and export gds again.
however, the output would be quite huge.