This feature is for sending commands to a particular Player on the same network.
To expose the API of a Player we have two ways, the Player or the Manager.
Trough 4YouSee Player:
Clicking once on the player will show up a menu, click on the gear symbol (Settings)
Then in "Expose API" check the "Enable" option to enable the function to expose Player API on the local network:
A Windows security alert will appear, where you will need to enable or disable network communication Permissions (1) and then click Allow Access (2):
A confirmation window will appear informing you that clicking "Yes, please continue!" the player will restart to apply the new settings:
Trough 4YouSee Manager:
Click on Players (1) and then on the Options icon for 4YouSee Player (2):
Attention: This function is only possible with the Online Player.
In the menu that will open, click Set Up Player (3):
On the next screen, check the option "Expose API" (4) and then "Save" :