To do this task
Open the estimate you want to edit.
Do any of the following:
To insert a line, click the line below the intended insertion point.
Then go to the Edit menu and click Insert
To delete a line, click the line. Then go to the Edit
menu and click Delete Line.
To replace one line item with another, enter a different item in the
Item field and press the Tab key.
Fill in the rest of the line as you would if it were a new line.
QuickBooks automatically recalculates totals and sales tax when you make