How to change default video quality for player?

To change the default video quality for a player please go to the Players page 

On the Player page, you will have a list of players in your account.

To change the quality for the player click the Edit icon on the right of the player. 

In the Default quality, section select 360p, 480p, 720p or 1080p

After you have finished editing it make sure to Preview player behavior to make sure you got the desired outcome.