Design View does not work.
Welcome to Extension Builder.
Really? Only hardcoded UIs?
Thanks for the reply.
Yup. Search the forum for more details and workarounds.
This is pretty disapointing. They should have a pop-up while signing up "BTW: We had this UI designer but we don't support it anymore! Sry pal." Maybe I should switch back to configurator. That seems to work.
I could not find any kind of workaround for building uis visually here on the forum. Could you provide some links to get me started?