If your publisher’s ordering system accepts Gratis Orders (orders for review copies, or finished copies, for either your customers or yourself), you can place those orders in the OMM.

When viewing an order, you can click Switch to Gratis Order to create a copy of the order’s title list:

From there, you can add gratis copies of desired titles, as well as toggle back to the “Parent Order.”

You can also create new blank Gratis Orders and add relevant titles using the Title>Add tool: