After enabling the bigbrother code, hold [Ctrl] + [Shift] and press J to cycle through the different camera modes. These are:
Mode 1: Controls the "X", "Y", and "Z" axis
Mode 2: Controls only the "X" and "Y" axis
Mode 3: Normal
To control the axis, you can use either the cursor keys, or the Left Mouse Button + Mouse Wheel. If you go through all three modes then hold [Ctrl] + [Shift] and press J again, you will start back at Mode 1, but without the values that you previously set.