Hi Martijn, you will be able to skip the regular security line (if there is any), because you can enter directly behind row 24. Go over there, show your business class boarding pass and the guards there will let you through (bypassing the whole regular security line, if any). Turn right upstairs, there are signs here for priority security for DEFG gates (in going upstairs you are together with regular security pax) and once upstairs, stay to the right to join the last part of the priority security line. If you are there around 7:15, you will have plenty of time airside and do a bit of lounging. Just don;td try to cut things really short, if you happen to have lots of time left airside, enjoy a nice drink in the lounge. Have a pleasant SQ flight