To sort the cost items, do the following:

1. Click on the column header to sort by.
2. Click Sort.
3. Click Renumber to renumber the columns based on the new order.

To copy an item within the list assembly, do the following:

1. Click on the item to copy.
2. Click Copy.
3. In the Reference field, enter a reference number for the new item.
4. In the Description field, enter a description for the new item.
5. Select the Reset Quantity checkbox to change the quantity of the new item to 0.
6. In the Copies field, enter the number of copies of the item to create or click to increase or decrease the quantity.
7. Click OK.