To Add
1. Go to any Contact Profile
2. Click on Add
Clicking Add will bring up the list of Custom Fields you've created!
3. Select the Custom Field You Want to Add
Select the Custom Field from your list you want to add, and then type in the information needed!
4. Click Save
Don't forget to click Save!
To Delete
1. Go to the Contact Profile
2. Click the Pencil
Clicking the pencil next to the custom field will allow you to either edit or delete the field.
3. Click on the garbage can
It will then have you confirm whether you want to Keep or Delete the Custom Field from your Contact Profile.
For more information on Custom Fields, don't forget to check here!