Mark columns as "private", so that data won't be shared by default

Some forms contain sensitive (personal) data. Once you have that, you currently cannot share a the data of a form publicly, since this option is an all or nothing.

I have the following suggestion for a new feature:
Can we have an attribute “private=yes” (or something similar) per question.

  • The data of this question should then never be exported when sharing data publicly.
  • Accounts with the role “can view private data” can see (and download) the private data. Accounts with the role “can view data”, only can see non-private data. (or have a new role “can only view non-private data”)