CO's billed Separately when Grouped or Summed by Owner Code

When we create CPR's and CO's that use our Standard Cost code list; if we have created Owner Codes to show the SOV in a certain way, when we create a Prime Invoice grouping or summing by Owner Code, the CO's roll into the line items instead of remaining separate. If we can already bill for and have CO's show up separately in other views, then we should be able to do the same when using Owner Codes, even if we needed to create an Owner Code for the CO and tie everything to that (which we can't do).