Q: How do I activate AirPlay function?
A: If there is any AirPlay device in your network you'll see AirPlay button next to volume control.

Q: Why cover arts are not displayed?
A: Cover arts display depends on the server (if DLNA server returns "upnp:albumArtURI" then album art will be visible).
For additional verification you can use "long press" for any music file which should contain cover art and click "Diagnostics". You'll see full information about music item. You can send it to 8player's support and we will check if your server provides for the info about cover arts.