To use AutoFocus transforms in Maltego you'll need to have a copy of the tool installed, as well as valid license keys for it, for more information see: https://www.paterva.com/web7/downloads.php#tab-2. We recommend using the Maltego Classic Client.
To setup the AutoFocus transforms, simply navigate to the Transform Hub in Maltego, and select the Palo Alto Networks transforms and click Install.
The first time you attempt to run one of our transforms you'll be prompted to supply an API Key:
You can find your API Key and it's status in the AutoFocus UI.
If you're looking at where to start, here's a short video showing some examples of how to visualise data in Maltego from the AutoFocus dataset: