What I'm really looking for is one location where I can define overall goals (and associated metrics), define initiatives underneath each goal (but in a format where I can see all goals) along with metrics, and then start defining features underneath each initiative.
You can now define new records and their relationships with Aha! shapes in whiteboards. Plan out your goals, initiatives, releases, and features using Aha! shapes from the Shapes menu, and define parent/child relationships between them that are automatically created when you convert those shapes to records. Read more here: https://www.aha.io/blog/use-aha-shapes-to-create-record-relationships-on-whiteboards