Why do the knobs and switches only move down or left?

The 747 uses a system of right AND left mouse clicks to operate most of the knobs and switches. A LEFT CLICK will decrement the knob/switch down or left and a RIGHT CLICK will increment it up or to the right.

To find this information in your documentation, look in Start/All Programs/PMDG Simulations. You'll find everything listed right there.

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