How to edit/remove the sub-labels of phone field?

I want to include a mobile number under the main phone number. How do I remove the 'area code' and 'phone number' text?

Hello Dexterquinn,

It is possible to directly edit the sub label to either edit or delete it. Please check the screenshot below on how to edit the sub labels of form fields:

Hope this helps.

Do get back to us if you have any questions.

Thank you!