So that’s probably the problem you’re having, it says that screen is unable to use the Current Question.
Which means there’s another screen linking to it, which makes it unavailable where you need it.
So look at your other screens and the arrows between them and figure out where it needs to get deleted so that the Linked Data on the screenshot you posted says it’s available.
This often happens I think when you have a chain of screens (user starts at screen A, clicks a button to start the process, taking them to screen B, which takes them to screen C, etc…) but if you have another page linking to screen B, then it’s not allowed because screen B doesn’t have the data it needs without the user starting at screen A first.
As far as database design… You’re thinking about it like an excel spreadsheet that a human would easily be able to read… Whereas with databases, it’s not recommended to do it like that.
I was just using 14 as an example, assuming there were 7 questions and 7 answers.
But yeah the main concept is to have a collection (table) for each type of thing you’re recording and then link them together using reference fields.
I’m making a recipe site. It would be easy to record what cookbook a recipe came from in my “recipes” collection. But what if I also want to record the cookbook’s authors, and publishers, and what year it was published? I could write all that into my recipes collection too… But what if there’s 200 recipes in the book? I’d have to write down the cookbook name, authors, publishes and year 200 times! So it’s better to make a “cookbooks” collection too, and store the information about the book once, and then tell my recipe page that “all the cookbook data is over there in the cookbook collection”