Yes/No question --> How to show which is correct answer?

Hello,
You don't need to save the question to get the options loaded. The options get loaded every time when you open the layout to add/edit the question irrespective of whether you are saving the new record or updating an existing record. If It's not working this way, please open a ticket and share your backend & FTP login credentials here www.wdmtech.com/support-tickets , We'll look into it.

for new people with the same problem I'd like to add: you have to save your question first. Then it will show up at the bottom. And, in my case, I then had to give the options and then save again and only then did the radio buttons show up so that I could pick the correct answer. Really missing proper guide and /or documentation for this. It should be easy to figure out but it isn't.

Daniel, I found it. By accident
It's at the bottom of the page. Did not see it there. Thanks for your screenshot. That was helpful because I then realized what it was supposed to look like!

I don't see this. Where exactly is this in the menu?

This is what I see when I create a question