Can I split a job among several vendors if the Language Pair is the same for all?

Hello! I have a project where I have split five different files among five different vendors, but the language pair is the same. I was forced to add translation tasks and split them in twos, but this is not practical, because I want them all to share their finished files with the editor, who ended up at the end of the line. Can ONE translation task be split among five different vendors if the language pair is the same? I could only do two. Thanks!