An electronic measurement device, wherein the electronic measurement device is a spectrum analyzer comprising: channels for receiving and/or forwarding RF signals; a user interface control device, said user interface control device comprising: a display; an input key that can be pressed by a user, and a processor configured to register a starting time and a duration of a key press on the input key, wherein the processor is configured to assign a first function to the input key if the duration of the key press is shorter or equal to a threshold time value, and wherein the processor is configured assign a second function to the input key if the duration of the key press exceeds the threshold time value, wherein the display is configured to display a graphical element, which indicates a duration of the key press at least until the threshold time value is reached, and wherein the first function of the input key comprises activating a channel preset mode of the electronic measurement device and wherein the second function of the input key comprises activating a device preset mode of the electronic measurement device, wherein, in the channel preset mode, a currently selected channel of the electronic measurement device is preset to a default configuration, and in the device preset mode, all channels of the electronic measurement device are preset to a default configuration. channels for receiving and/or forwarding RF signals; a user interface control device, said user interface control device comprising: a display; an input key that can be pressed by a user, and a processor configured to register a starting time and a duration of a key press on the input key, wherein the processor is configured to assign a first function to the input key if the duration of the key press is shorter or equal to a threshold time value, and wherein the processor is configured assign a second function to the input key if the duration of the key press exceeds the threshold time value, wherein the display is configured to display a graphical element, which indicates a duration of the key press at least until the threshold time value is reached, and wherein the first function of the input key comprises activating a channel preset mode of the electronic measurement device and wherein the second function of the input key comprises activating a device preset mode of the electronic measurement device, wherein, in the channel preset mode, a currently selected channel of the electronic measurement device is preset to a default configuration, and in the device preset mode, all channels of the electronic measurement device are preset to a default configuration. a display; an input key that can be pressed by a user, and a processor configured to register a starting time and a duration of a key press on the input key, wherein the processor is configured to assign a first function to the input key if the duration of the key press is shorter or equal to a threshold time value, and wherein the processor is configured assign a second function to the input key if the duration of the key press exceeds the threshold time value, wherein the display is configured to display a graphical element, which indicates a duration of the key press at least until the threshold time value is reached, and wherein the first function of the input key comprises activating a channel preset mode of the electronic measurement device and wherein the second function of the input key comprises activating a device preset mode of the electronic measurement device, wherein, in the channel preset mode, a currently selected channel of the electronic measurement device is preset to a default configuration, and in the device preset mode, all channels of the electronic measurement device are preset to a default configuration.