Hi Ulrich,
I'm afraid I'm still having this problem, even after the recent PMDG and Spad.Next updates.
The code I'm using for the Alti on the Multipanel is below, but it is basically the same as in the PMDG 747 which works a treat. I don't know if it's related but I also have this weird anomaly which results in the battery switching to Off when I raise the Landing Gear. Which makes things tricky! I've uninstalled and reinstalled the aircraft but can't think of what else to do.
Cheers
Warwick
<BaseEvent xmlns:xsd="
http://www.w3.org/2001/XMLSchema" xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance" BoundTo="MULTIPANEL_SELECTOR_ALT" xmlns="
http://www.fsgs.com/SPAD">
<EventDefinitions>
<EventDefinition Trigger="VALUEON">
<EventActions>
<EventActionDisplayValue TargetDataDefinition="PMDG737:1000:010E" TargetDisplay="DISPLAY" />
</EventActions>
</EventDefinition>
<EventDefinition Trigger="TUNER_CLOCKWISE">
<EventActions>
<EventActionControl TargetDataDefinition="PMDG737:EVT MCP ALTITUDE SELECTOR" Value="2147483648" ValueOperation="Set" />
</EventActions>
</EventDefinition>
<EventDefinition Trigger="TUNER_COUNTERCLOCKWISE">
<EventActions>
<EventActionControl TargetDataDefinition="PMDG737:EVT MCP ALTITUDE SELECTOR" Value="536870912" ValueOperation="Set" />
</EventActions>
</EventDefinition>
</EventDefinitions>
<Options>
<Option Key="VALUEMIN" Value="0" />
<Option Key="VALUEMAX" Value="99999" />
</Options>
</BaseEvent>