I picked up a few new shades from the factory last week and they confirmed they just send cut shades to Entegra, who puts them where they need to. So you need to have Entegra make those changes, it would seem.
As for direction of operation, I found mine operated differently from what I'd prefer and what I ordered. It seems like I can simply reverse the rollers by removing a couple screws and as soon as I get back into the U.S. I plan to try to doing this. Don't see why it can't be done.
2014 Newmar Essex 4544
2007 Lexus LX470 Toad