Simple Conversion?

Can someone tell me if this is possible? The flight school I belong too recently bought a brand new C-172SP with an incredible panel. The HSI (not a heading indicator anymore
) looks perfectly identical to the King Air VSI. At the bottom, on the left is a heading adjust knob and on the right is a course adjust knob. Would it be possible to convert the King Air VSI into a HSI with the two knobs? I am not a gauge person and would be interested in seeing if anyone could accomplish this as it is the one thing I lack for making a perfect recreation of this aircraft. Thanks for any help you can provide.
EDIT: I guess I should add that the indicator looks visually similar to the default 737 HSI without all the indications of VOR, ADF, course, etc around the edges. Just the gauge. A simple white course pointer and a pink heading indicator with the main gauge being in white.

EDIT: I guess I should add that the indicator looks visually similar to the default 737 HSI without all the indications of VOR, ADF, course, etc around the edges. Just the gauge. A simple white course pointer and a pink heading indicator with the main gauge being in white.