Is anyone able to help out with this request?
I can't get this done in a single click, but here goes.
You will want to go to your data center and select one data set by clicking on the check mark by the data flow icon (1). Then you can click on the "Select All" option that appears in the blue bar at the top of the page (2). Finally, you will want to click on the gear icon in the top right and click on change owner (3).