In order to drag and drop you need to hover the mouse in the vertical points in the left of the property name you will see the pointer changes into a a 4 arrows icon, then you will be able to drag and drop. The same as you do when adding properties to a layout.
Thanks for your hint :). Have tried it, but didn't work so far. I can hover all i like but no arrow shape. I do get a hand icon and other properties drag fine. Just the page properties wont appear on the report...
I used the workaround above and added the properties in the report definition in Designer Studio. Though it was difficult there too as the usual typing of "." didn't produce a dropdown of properties, I had to type it in myself and hope it was correct. Must be a Windows 10 issue.
There also doesn't seem to be any data in the Interview Date column?