Using the OBS Feature on the IFD440 with Avidyne Entegra and DFC90 autopilot 

Sure to press the upper right button?, isn’t it the upper left? Please reply and thank you, great ideas

Thank you, my mistake. Still using the GNS 430 in a Columbia. I think pressing the OBS button on the Garmin will get the same result. Gonna try on my sim. Good evening 😊