Custom family : Making materials changeable in model (Type Parameter)

1. Open Family

2. Modify tab

3. Select family types dialog box

4. Select Now

5. In the Parameter Properties dialog box

1. Name Parameter Material

2. Under Data Type select Material

3. Select Instance

6. Select OK

7. Select OK

8. In the 3D View select the extrusion you want to change materials on

9. Select associated family parameters in the properties tab

10. Select Materials

11. OK

12. Ensure that Subcategory is None

13. Load family into project