When pressing 
button a dialog box appears:
| Parameter | Remarks |
|---|---|
| Codes | There are the assortments (codes) selected in the "Codes" column (e.g. NEN, EC - Eurocode) |
There are all available materials displayed in the "Available materials" column. Materials are indicated using  button |
|
| In the "Assigned materials" there are materials belonging to the selected assortments (codes) |