Mobile Sync - add support for Windows 10 and Windows Phone 10

On the big splash page, it notes that “Mobile Sync is supported on Windows with Plex Pass”; yet here (https://www.plex.tv/apps/mobile/windows-phone/) it states W8 only.

My W10 phone will be listed in “Devices”, but when I click the Download button it ain’t there . . .

I should clarify, its music Playlists I want to sync