you have to create dual screen display in locations. Assign one display to the mobile and another to your screen(to which you want to drag it to). Those other device will act as extension of the initial device.
you don't need any extra sensors or equipment for it.
I believe that the information relates more to the Adobe Experience Manager Screens functionality than to Mobile. You may try posting in the general AEM forum  and put a title on it to get the attention of the Screens folks.