setPlayModes

This argument only applies to content that uses the shared queue.

If playModes.shuffle is null or omitted, the current shuffle mode of the player will be retained and respected.

If playModes.shuffle is true, the new tracks will be shuffled when added to the shared queue. The shared queue's shuffle mode will be turned on if it is not already on.

If playModes.shuffle is false, the shuffle mode on the player will be turned off and the tracks will be added in their normal order.

This applies for each of the play modes individually, which are not mutually exclusive with each other.