You can edit the fields within the Bio box (top left) on the Contact Profile page.
Steps
Go to the Contact Profile page
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Click Edit
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Bio
You arrive on the Edit Contact page
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A tab appears for each of the Contact Forms that have been completed for that contact
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By default, the first tab is open
Click each tab to display the fields within that Form
Edit the fields in the Form as necessary
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If there are additional forms you want to add to this contact’s bio, follow these steps to complete additional Contact Forms if required
Scroll to the bottom and press Save
You arrive back on the contact’s profile