The 7 day cloud storage is part of the basic package.
You can manually record to the cloud library while you live view a camera.
If you set the record options in the current running mode your using then any motion or sound activated events get recorded to the cloud for the duration selected.
You can create custom modes or edit default modes such as “Armed” to control what your cameras can do.
In any of those modes you can add rules for your cameras to determine what can trigger an event and what cameras are recorded, what siren is sounded and what notifications are sent.
Activity zones are used to mark out motion areas for wanted triggers.
Unless you have a specific need, suggest you play with the basic features to become competent with the operation before adding subscription plans.
There are FAQs you can read as well as the technical manual on the support page.
Just be aware of what limitations are introduced when using the subscription plans.