Arrow keys ChaseCam around spatial

I was looking through all of the examples in the JME wiki/tutorials. and there is this game that is 3rd person view, and a chasecam behind it. and it seems you can click the screen and drag to rotate the camera around the player(spatial?), and I was wondering if you could set it to use the arrow keys to rotate the chasecam around the player.
help is appreciated! thanks!

please don’t double post