Modular FuelSystem

Hello All, in my aircraft project i receive this loop error:
attemping to call FuelSystem simvar on a plane which doesn’t use the modular FuelSystem.

It seems to come from my gltf model, how can I set my plane to use the MODULAR FUEL SYSTEM?

Thanks

Hello,
I am also having an issue trying to get these SimVars to fire

        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM PUMP SWITCH:1", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM PUMP SWITCH:2", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM PUMP SWITCH:3", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM PUMP SWITCH:4", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM PUMP ACTIVE:1", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM PUMP ACTIVE:2", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM PUMP ACTIVE:3", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM PUMP ACTIVE:4", "Bool");

        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM VALVE SWITCH:1", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM VALVE SWITCH:2", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM VALVE SWITCH:3", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM VALVE SWITCH:4", "Bool");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM VALVE OPEN:1", "Number");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM VALVE OPEN:2", "Number");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM VALVE OPEN:3", "Number");
        hr = SimConnect_AddToDataDefinition(hSimConnect, DEFINITION_1, "FUELSYSTEM VALVE OPEN:4", "Number");

You can ignore the indexes since I am not sure if they are correct. I found them in the Boeing_Common.js because I am trying to get them to fire for the B787 since I know the overhead switches are triggering the FUEL display on the MFD. Have you managed to figure out how to get these to fire or figured out what configuration I need for a modular fuelsystem?