Hello GünterThanks for your quick respons, but is stil not loses my problems.I try to connect the knob with the arrow to the FMC ComboIn the next image I've find out the names of the LVars, Display Scale en MFD Modealso to see in the tracerI can't find out in whick librari this LVar can be foundBut now about de Feelthere, when I click of turn on one of the (I suppose) LVARS knobs, I can't see neither in the console or tracer any reaction.So the problem is not LINDA or the CMP: but the beautiful Embraer.Hans