See Introduction to Hero Activities to learn more.
Create Hero Activity
Login to Vivun.
Navigate to Setup > Configuration > Hero Activities.
Click + Add New.
Add the new Hero Activity Name.
Click Save.
Add Custom Fields
Login to Vivun.
Navigate to Setup > Configuration.
Expand the Layouts section.
Click ⚙ next to the Activity Type to add a custom field.
Click + Add New Field.
Select the Custom Field from the dropdown.
These show all current custom fields mapped to the Hero Activity Salesforce object.
Click Save.