The Contact Settings Tab is where you can manage the Custom Fields that allow you to capture data that is permanent and unique to each contact.
Here's how to Edit a Custom Field:
Contacts Settings - How To Edit A Custom Field - Step 01
Click "Contacts"
Contacts Settings - How To Edit A Custom Field - Step 02
Click the Settings "settings" icon.
Contacts Settings - How To Edit A Custom Field - Step 03
Click the "Edit" "pencil" icon next to the Custom Field you wish to edit.
Contacts Settings - How To Edit A Custom Field - Step 04
Click the fields you wish to edit and edit them as desired.
Contacts Settings - How To Edit A Custom Field - Step 05
Confirm all of the fields are changed as desired.
Contacts Settings - How To Edit A Custom Field - Step 06
Click "Save"