in some aspects of the invention , a system for operating a plurality of plasma and / or induction heating processing systems includes an operating unit that has a display device on which a graphic user interface can be displayed , at least two power generators that supply power to a plasma process or an induction heating process , and a network that connects the operating unit to the power generators to transmit signals between the operating unit and the power generators . the graphic user interface includes a static region and a dynamic region , and a selection device for selecting information to be displayed in the dynamic region .