We would like to have the option/availability to turn off the additional email address to the same record as we found out below cases
If a different person uses the same device/browser, the email address is added to the same contact record. > but there should be 2 different records.
If the same person uses the same device/browser, but a different email address, HubSpot adds to the same record as well > then the email address is not the UI to map data anymore.
The only method to prevent this is updating the API script to retrieve data records by email address.