MODULE
        {
            title = ModuleB9PartSwitch
            moduleID = fuelSwitch
            switcherDescription = Tank Type
            baseVolume = 800
            SUBTYPE
            {
                title = Structural
                name = Structural
            }
            SUBTYPE
            {
                title = Liquid Fuel
                name = LF
                tankType = LiquidFuel
            }
            SUBTYPE
            {
                title = Liquid Fuel/Oxidizer
                name = LFO
                tankType = LFO
            }
        }
        MODULE
        {
            name = ModuleB9PartSwitch
            moduleID = FreeIva_fuelSwitch
            baseVolume = 800
            SUBTYPE
            {
                name = LFOX
                tankType = FreeIva_LFOX
                addedMass = -0.5
                addedCost = -367.2
            }
        }
        MODULE
        {
            name = ModuleFreeIva
            partInfo = This part can be traversible in IVA with a penalty of 50% of its tank volume.
        }
        MODULE
        {
            name = ModuleB9PartSwitch
            switcherDescription = FreeIva
            moduleID = FreeIvaSwitch
            parentID = FreeIva_fuelSwitch
            SUBTYPE
            {
                name = Blocked
                title = Blocked
            }
            SUBTYPE
            {
                name = Passable
                title = Passable
                volumeAddedToParent = -400
                addedMass = 0.6
                addedCost = 200
                MODULE
                {
                    IDENTIFIER
                    {
                        name = ModuleFreeIva
                    }
                    DATA
                    {
                        passThroughNodeA = top
                        passThroughNodeB = bottom
                    }
                }
            }
        }