Create an AirPlay configuration in Apple Business
Apple TV has a mode called Conference Room Display that allows anyone to share their screen from an iPhone, iPad, or Mac using AirPlay. When Conference Room Display is turned on, a message appears on the display with AirPlay connection instructions and wireless network details.
You can also set an Apple TV so that the only mode it offers is Conference Room Display. When you set this, you can add a custom message that users see when they attempt to connect to the Apple TV using AirPlay.
See Use Apple TV 4K as a conference room display in the Apple TV User Guide.
Create an AirPlay configuration
In Apple Business, sign in with a user whose role has permissions to create, edit, and delete device configurations.
To view roles and permissions, see Intro to roles and permissions.
In your browser, choose Devices > Configurations > All Configurations.
Select All Configurations, select Add
next to AirPlay 
, then enter a name for the configuration.Choose the platforms to create the configuration for, such as:
macOS
tvOS
Set any of the following:
Configuration and supported operating systems
Option
Description
Receive AirPlay
macOS, tvOS
Allow
Deny
Choose whether to allow the device to receive AirPlay requests. Mac computers can only be set to deny AirPlay.
Conference Room Display
tvOS
Yes
No
Choose whether to use Apple TV as a Conference Room Display. If set, only streaming using AirPlay is permitted and no apps are accessible.
Display message
tvOS
Enter the message
Enter a message to display on the screen. The message appears on the screen saver below the default AirPlay network and passcode information.
Direct link
tvOS
Enable
Disable
Choose whether AirPlay is available using a direct wireless connection to the Apple TV. If disabled, only requests from devices connected to the same local network as the Apple TV are accepted.
Use password
tvOS
Password
Passcodes
Choose whether to set one password for all requests, or to use on-screen passcodes.
Password
tvOS
Enter the password
Enter the password required for AirPlay requests to the Apple TV.
Select Save.