Material Group(s) Dialog
By default, the imported object’s materials will be stored in a New Group in your materials library unless you select a different group in the Material Group(s) dialog.
To select a group to store the materials in, select it in the list, then click OK.
To create a new group, select Materials > Add Group, or right-click in the Group window and select Add Group. A new item is added to the list. Type a name for the group, then press Enter.
To rename a group, select it, then select Materials > Rename Group, or right-click it and select Rename Group. Type the new name and press Enter.
To delete a group that you created, select it in the list, then select Materials > Delete Group, or right-click it and select Delete Group. Note that the existing, pre-defined groups cannot be deleted.
If you do not want to select a group, click Cancel to return to the Block Import Options dialog.
Note: The File menu in the Material Group(s) dialog is disabled. This is because the Transfer tool which is normally found on this menu is not applicable when importing custom objects.