Configuring the input

Create a new row in the inputs tab of the main window

Double-click on the bottom row where the description says Double-click row to add new config… and enter a description for the input. For example, enter AP - Heading for an encoder that will control the autopilot heading value.

Open the input configuration dialog

Click the button with three dots in the Edit column for the row created in the previous step.

Select the board and device for the input

On the Input tab, use the Module and Device dropdowns to select your connected board and encoder.

Alternatively, press the Scan for input button and rotate the encoder to automatically detect and select the correct encoder.

Set the On Left action type and filter the presets list

On the Input tab, select the On Left input setting tab. Use the Action Type dropdown to select Microsoft Flight Simulator. Then use the Filter Preset List dropdowns to filter by Microsoft, Generic, and Controls.

Select the heading decrement preset

Use the Select Preset dropdown to select the AP_HDG_VAR_DEC preset.

Configure the On Right action

Repeat steps 4 and 5 for the On Right tab, selecting AP_HDG_VAR_INC for the preset.

Close the dialog and try it out

Click the OK button to close the dialog, then spawn an airplane in Microsoft Flight Simulator.

Make sure the MobiFlight Run button is clicked in the toolbar, then try adjusting the autopilot heading with the encoder. The heading value in the simulator should increment and decrement.