That’s not an LVar.
1 (>B:AIRLINER_LS_Toggle)
or
0 (>B:AIRLINER_LS_Set)
and
1 (>B:AIRLINER_LS_Set)
etc.
LVars aren’t InputEvents, they are just - variables. Normally they are used to control animations and internal states. Sometimes you are lucky and manipulating an LVar will in fact actuate an aircraft system, but that is in no way a “standard” or rule of any kind.