Multiple Unbilled Items for a one line invoice description

I think a nice enhancement for the invoice preparation would be when you bring in the “Unbilled Items” to prepare an invoice, you may have multiple “Unbilled Items” that pertain to a one line billing description. If you programmed a “Do Not Print” checkbox by each item, by say the trash button. Then you could use one item to type the billing description for the invoice and then those items checked to not print would clear out with the billing of that service and not go back as an “Unbilled Item”.