Multiple load balancing apps on one machine

Hello, we use Load Balancing as base for our server applications, for our unity games.
We have a test server, where we host our server app.
We have recently decided to run tye second default load balancing app on the same machine as our main one is hosted, so we wont need to buy second server machine for our tests.
Is that possible? I guess we need ro setup ports that our apps use, and just run PhotonCloudService without PhotonControl?
We have default configs for both apps. Please, help to set that app.
Thanks