Rear Wiper : Push Away to get it to start on intermittent . It tends to do more strokes if you push forward long enough for it to use the screen washer.. Push forward again to make it stop , there doesnt seem to be any kind of duration delay setting .
Front Wiper : click down for one wipe , leave it there then click up . This sets the duration , then just click down and it will keep this setting until you kill the ignition .