The amount of licenses a Multi-Sensor Camera uses depends on the licensing tier. If you are using an OpenEye multi-sensor camera, any tier of OWS 24/7 licensing will provide you with a 4:1 license ratio. To take advantage of the 4:1 license ratio for a 3rd party multi-sensor camera, you must have OWS 24/7 Plus licensing.
See this link for more information about Licensing Types: https://www.openeye.net/assets/documents/ows-24-7-features-comparison
Adding Cameras Natively
To use the correct 4:1 licensing ratio, the system will need an active OWS connection. Additionally, the camera must be added natively to the recorder through the Discover Cameras function. If the camera is manually added, it may take up additional licenses. Follow this link for more information about adding cameras natively: Adding Cameras via Discovery
The Camera is Using More Than One IP Address
If the camera uses multiple IP addresses, it will take up a licensing slot for every IP address. The camera needs to be able to utilize a single IP in order to work with the 4:1 license ratio.