Windows Mixed Reality 3D Launcher

Is there a simple way to create a 3D launcher in WMR for an Unreal VR build ?
The Microsoft tutorials seem to be made for Unity packages wich UWP format and including manifest files (there is documentation about Win32 app but it didn’t work for me; there seems to be more informations too about Hololens but I couldn’t adapt it).
It is possible to open the build with a traditionnal shortcut, but it doesn’t allow to place a launcher in the environment.