Article in parent and child taxanomy term.

Hello,
At first I like to thank Open Publish developers for such a nice platform. Thank you!
However I have little problem, that I am trying to solve. I need my article to be published in Sports category and in its child Light Athletics category. How can it be done? When I publish it in Light Athletics category, it does not show up in main sports category, but I need it to be published at both.