To add same camera multiple time, export camera configuration settings and import it as many times you want to add that camera, which will skip steps to configure the camera each time.

By configuring same camera with different actions for different scenario you can perform motion detection and regular interval monitoring at same time which helps you to keep track of motion and reason behind motion, add mask areas to monitor different regions and you can also view separate areas using zoom functionality.
Learn more about different monitoring actions.

Note: Some IP cameras might have a specified maximum connection limit. If that limit is exceeded, then the camera will not show a preview when you add it multiple times.