QtPlasmaC User Button Setup Page Enter the name of the button and the code used by the button. Names can display on two lines by using the backslash character "\" e.g. PROBE\TEST Random buttons may be used, there is no requirement to use consecutive buttons. The number of buttons showing in the GUI is dependent on the screen size. For 16:9 and 4:3 formats the minimum displayed user buttons is 10 and for the 9:16 format the minimum is 16.