Identifiers, numbers in square brackets in the picture below. are only available in IDIS Solution Suite Video Wall Agent and used for an IDIS Network Keyboard to select a device to control. The identifiers can increase as many as the number of devices that ISS Administration service can have registered because there is no limitation on the number of identifier.

FYI, Identifiers appears only in Video Wall Agent, not in IDIS Center or IDIS Solution Suite Client, and one IDIS Solution Suite Administration service can register 1024 devices.