Is there a way to create a category where only staff and the user who created the page can see contents?

Hi Magnus,

We're using the forum for both public and (ideally) private support for users.

I'd like to create a special forum category for "private support". Typically, the issues in here would be created via the API (users filling out a feedback form). I'd like to make it possible to limit access to pages created in that category to only be the user who created the page and staff (and possibly other groups too).

I tried to set this up via permissions in the past but couldn't get it working (I can't remember right now exactly what I did or saw). If this is currently possible, would you be able to share instructions?