How to add contacts to FluentBoard dynamically?

I want to offer my clients a form to register as members of a board. I’ve reviewed all the triggers, actions, and conditions in FluentCRM, as well as the available integrations in FluentForms, but haven’t found a suitable solution.

Is there any way to automatically assign contacts to a specific board? So that they can receive a "welcome" mail including information about how to use "their" board?