Defining the Classes with Access to an Area Select the security classes to assign to the area in the ‘All Classes’ list box and use the arrows to move them to the ‘Classes with Access’ list box. To select multiple adjacent security classes, hold down Shift and click the first and last security class. To select non-adjacent security classes, hold down Ctrl and click one security class at a time. To edit classes previously assigned to an Area, access the Security Class Setup wizard. Click Save to display the Welcome to Area Setup screen.