The half page settings are in overlay mode>select display mode [3rd or 4th icon lower left] and the pedal settings are in the global settings>touch/pedal settings and the scroll setting is in the overlay mode> first icon on the lower left.. I don't use that so you will have to work it from there.
Dell Latitude 13.5" 2-in-1 Ubuntu/Win 11
Samsung Note Pro SM-P900 12.2 Android 5.0.2
Samsung S7+, Android 12
Samsung Note Pro SM-P900 12.2 Android 5.0.2
Samsung S7+, Android 12