In the overview you will see either a folder with APIs or a single API depending on what you have selected in Discover APIs . Therefore, other options will be available to you in some cases. In this case, it is a single API.
Deplyoments
Here you can see all gateways on which your API is available.
With "Scan Nodes for this API" you can find further deployments on gateways that have been installed in AAGM.
Alarm Rules
You can edit the initial values here and reset to them for each API here.
If you want to define certain rules for one API that do not apply to others, you can do it here.
Variables
Here you can create, edit and delete variables of your API. You can also import them from a running Instance.