Hello, in order to change the Express Accounts Hours column to Quantity you may go to Options (windows) or Preferences (Mac) then go to Invoice on the Left side pane then under Invoice Text, go to Invoice Text Item and from the options select the Quantity column title and in the box to the right you may change Hrs to Qty. Once you have made the changes needed you may click on OK and the next invoice you open it will show QTY instead of Hrs.