To select multiple objects, start with your pointer outside of any object, while pressing and holding your index trigger, move your pointer through all of the objects that you want to select, then release your index trigger. A blue box will appear around all of the selected objects.
Important
To select objects in a larger area, you can expand your selection tool. Press and hold your index trigger and push your thumbstick to the left or right to shrink or grow the sphere. Objects that enter the sphere will be selected.