Hi @apmeyer,
Thanks for asking!
Make sure to turn off “Non-HubSpot Forms” in settings. Then, download the Gravity Forms HubSpot Add-on (you can do this inside of your Gravity Forms plugins by navigating to their Add-ons section).
From there, you can choose which forms you want to sync with HubSpot.
Let me know if this helps, or if you need extra clarification!
Best,
Greg