Create a new User Defined material by clicking on User Defined Material under Material management on the left. Then select the appropriate shape under Material Category and click the New button at the bottom of the Material List window.
The User Defined Material Setup window will open. Fill out the Name, the Materiel Properties, and then under Application Categories, choose where the UDM is applicable (e.g. wall members). Click OK to save the new Materiel. (The Material properties for depths and width is in FIS Format so 000108 would equal 1-1/2").
Save the material and then add it to one of your consider lists in Material List.