Nevermind, I didnt realize that Server 2016 never had its base upgraded to 1709 (or beyond) where that functionality was added to 10; my fully updated WS16 install is still 1607. Theoretically that means it should be available in WS19 though, as that one is based on 1803.
Can someone who has WS19 installed check that? I might be tempted to upgrade after this semester is over if 19 has that functionality.