Black Square Analogue King Air Autopilot Question?

How do you work the autopilot, I see a VS but have no idea how to control feet per minute. Thanks

Moved to Third Party Addon-Aircraft.

This is all in the manual. There is a VS button on the autopilot panel and an up/down rocker switch to the right side to change VS. there is no display of selected speed so you must watch the VSI.

Where is the manual, I haven’t seen one.

It’s in the aircraft folder after installation. It’s quite a nice manual.