If you are looking to create a hired judge pool for your tournament the easiest solution is to:
1) Create a new "Hired Judge" school on the entries->schools page. I'd recommend entering "Tournament Name Hired Judges" for the full school name where "Tournament Name" is your tournament's name. For example, I might enter "Fall Champs Hired Judges" for full name and "Hired" for short name.
2) After you've added the school, you can then go in an add each hired judge on the entries->judges page. You'll see below that I've selected "** New School" for the school and the "** New Judge" for the judge name. That will let me enter a new judge name for the school I saved in the step above.
To add additional judges, just repeat starting with step 2.