Use a player editor to create new players and edit the existing ones.
To add a player: 

1. Go to Players → Players and click the + button at the top of the blade

2. Enter the player name
3. Select a player type: Video or Audio
4. Press Save to create a player
5. Click on the created player to open its settings where you can:
   
   • Change the state of a Player
   • Enable autoplay (set to ON by default)
   • Enable loop
   • Get the player code
6. Go to Players → Domains and click the “+” button at the top of the blade
7. Enter the domain where the player should be displayed and click Save