You can delete cost items from the estimate. Note that you can also set the quantity of a cost item to 0 (zero) to keep the cost item out of calculations and reports.

1. Open a job in the Manage Estimates screen.
2. From the Estimate tab, select the cost item(s) you want to delete.
3. Click Delete on the speedbar or right-click on the item and select Delete.
4. To delete the cost items, click OK.