I spent a few minutes poking around their project scripts, and it looks like that the design file you upload back to EC2 is a post-routed design checkpoint, whi

I spent a few minutes poking around their project scripts, and it looks like that the design file you upload back to EC2 is a post-routed design checkpoint, which is an interesting choice... I'll bet that they are doing partial reconfiguration with the I/O ring as the "static" layer.