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Go to Maxwell 2D/3D > Design Properties and create 2 new parameters: 1) Select Add Array… to create a material array. Name: MaterialArray, Append Rows.. > 3 > OK. On the Data fields, type “steel_1008”, “steel_1010”, “iron”, and accept with OK. 2) Select Add… to create an array index. Name: MaterialIndex, type: ArrayIndexVariable, Associate array variable: MaterialArray, Value: 0. Accept with OK. Then select the object which material you want to change, and in the properties window > Material, type ‘MaterialArray[MaterialIndex]’. On field ‘Evaluated Value’ you will see now “steel_1008”. Finally create a parametric sweep. Right-click on Optimetrics > Add > Parametric. Click Add and select MaterialIndex from the drop-down menu. Select linear step, Start:0, Stop: 2, Step: 1 > Add > OK. On tab Options, activate ‘Copy geometrically equivalent meshes’. Run ParametricSetup1 and you will have results with all the selected materials.