NGFW Rulestacks - custom objects not available

[JFruitt]

Looking to create a custom object but it doesn't show as an available option.  I have an AWS pay as you go account.  What am I missing?

[LAYER_8]

I'm searching for the admin guide, but am not finding anything except this: 

Security policies determine whether to block or allow a session based on traffic attributes, such as the source and destination security zone, the source and destination IP address, and the service. Custom security policies are supported with fully automated RFCs. CTs to create or delete security policy can be found under Management | Managed Firewall | Outbound (Palo Alto) category, and the CT to edit an existing security policy can be found under Deployment | Managed Firewall | Outbound (Palo Alto) category. You'll be able to create new security policies, modify security policies, or delete security policies.

Located here. I didn't immediately see anything about custom objects, but that would be a glaring omission, IMO