This is probably silly. But. Trying to bind the 6-pack + GNS panel to my Honeycomb Bravo, can't get the HSI heading bug to function. I found the "HSI/pilot_hdg_bug_knob" manips, but DataRefTool shows it stuck at zero, and trying to increment/decrement that manip in Spad.Next doesn't result in a heading bug change.
Am I misusing the manip?