The iCUE-professional software enables to use any Apple iOS device (iPad, iPhone or iPod touch) as Cue system control panel and controller. It is a suitable addition to CUE control panels and controllers or it can be used as standalone application. It has the same functionality as iCUE-standard plus any IP operated device can be controlled directly without need of control unit, because complete set of XPL2 IP commands can be used. The GUI application has to be designed using standard programming tool Cue Visual Composer, where effective application preparing is achieved by visual programming approach with drag and drop, advanced editing technique IntelliSense, export and import of ready to use pieces of program and more. Communication between the control panel device and control system is based on Wi-Fi communication using CUEnet2 protocol.