Has anyone managed to assign the Bus tie switch in the Longitude?

I tried ELECTRICAL_BUS_TO_BUS_CONNECTION_TOGGLE with other values.

You can toggle
L ELEC
L MAIN
R ELEC
R MAIN

with … something like 5 6 7 8 values. But the bus tie didn’t move.

I don’t think ELECTRICAL_BUS_TO_BUS_CONNECTION_TOGGLE is new because all the localization files for FS2020 have these entries. See \Packages\Official\OneStore\fs-base\de-DE.locPak and you can see a lot of the events that show up in FSUIPC but not any SimConnect docs.