How does that site work?
You have to register an account, otherwise you can't do anything. That gives you access to an internal message system where you can say what you'd like to buy. You can include sample links and pictures. Crescent will then find a vendor with a good price and post links to the products so you can double check. If you click 'accept' you pay and they order it for you.
Try setting it to "HHKB Lite" mode.
Tried it again today and it worked. Thanks for the links!
In the meantime I fooled around with AutoHotkey and could change the right option key into a windows key. Still have the left one left as a modifier so I guess I'll leave it that way.
Still wondering why the dip switch wouldn't do anything yesterday. But it works now, so it doesn't matter I guess.