The present invention relates to a method of manipulating an audio and/or video signal in a graphical user interface (GUI). An audio and/or video signal comprises a number of components, each of which having a variable which varies against another variable. In order to save displaying space in a GUI, in one embodiment, components with same variables and scales of the variables are selected and displayed in one axis. A primary component is picked and displayed in a mode that is easily distinguishable from other components displayed in the same axis.