Microsoft on Wednesday published a new preview build (version 15031) for Windows 10 Insiders that, among other things, adds a new Compact Overlay option that’ll allow certain windows to always be shown above any other open apps or windows.
Dona Sarkar, leader of the Windows Insider program at Microsoft, said inbound updates to the Movies & TV app and the Skype Preview app will offer the option to permanently surface those windows above all others.