Hi Alex,

I noticed LNM doesn't show departure and destination (when I hover the mouse cursor over the aircraft) for AI traffic injected by Say Intentions, as it does with default and FSLTL traffic. Do you know why?

I asked the Say Intentions devs but it seems they don't have any idea why.

Regards

Answered below. The SimConnect variables come from FSX and are not documented for MSFS but they work when reading.
Perhaps it's simply a matter of the developer filling the two in.

Alex

Does anyone know if BATC injected aircraft have these variables set? I know that FSHud ATC aircraft don't.

They are actually documented in the SDK, but in the Miscellaneous Variables section, which says:

The following SimVars are still supported by Microsoft Flight Simulator 2020, but are considered legacy and will not be getting any further support or updates. As such, we don't recommend their use in new aircraft.

And specifically for AI TRAFFIC FROMAIRPORT:

The ICAO code of the departure airport in the current schedule. 

This variable is only valid for aircraft generated by the traffic database that have schedules. If an aircraft does not have a schedule, the value returned will an empty string"".

It's also marked as not settable, so that's probably why the ATC app developers are unable to set it.

Thank you both for the replies.