19Function Buttons• The Gratical has eight functionbuttons that can be assigned bythe user. These include the fourbuttons (F1, F2, F3, F4) and thefour directions of the joystick(UP, DOWN, LEFT RIGHT).Function buttons comepreprogrammed but can bechanged at any time.• To change the functionassigned to each button, selectthe function button you wishto change. From thesubsequent menu, choosethe desired function youwish to be assigned to thefunction button. It can now be activated by pressing the appropriate function button on the side ofthe Gratical without the use of the menu system.• Function buttons can only be used when the menu is not displayed.Lock Buttons• Select to lock the Gratical’sbuttons. While locked, thebuttons will not respond touser input. To unlock, pushin the joystick and hold for5 seconds.MAIN MENUDISPLAY CALIBRATIONLUTSCOLOR BARSSCOPESOVERLAYSMETERSPIXEL TO PIXEL (ZOOM)DSLR SCALING [Auto/Playback]ANAMORPHIC DE-SQUEEZE [NORMAL]FRAME STOREFUNCTION BUTTONSUSER FEATURESLOCK BUTTONSUPDATEABOUTFUNCTION BUTTONSCURRENT SETTINGSF1 TOGGLE EVF SCOPESF2 FALSE COLORF3 EXPOSURE ASSISTF4 PIXEL TO PIXELUP FOCUS ASSISTDN BATTERY LEVELLF NoneRT TOGGLE WAVEFORM/VECTOR