How to configure Board to be limited just for Iteration instead of Milestone?

Is there are way to configure Boards to narrow the scope for current “Iteration”? My dream-workflow in GitLab is that:

  • I have created Iteration that’s will be my Sprint 7
  • I have created Milestone for incoming scheduled release 1.2.0
  • I can have a board to see what’s my team doing in Sprint 7

Currently I have to use Milestones and completely avoid Iterations since they cannot fullfil my needs with Boards. See attached screenshot.

My GitLab is pretty outdated but my company has scheduled update quite soon (currently 13.6).