Use another Geolocation field for "Set location" button

My node needs to store both an address and lat/lng data. Using Google map geolocation, I have to display my own address field, and your geolocation field. The users have to type in the same data in both fields in order to use your "Set location" button.
It would be nice if your "Set location" button could take as input another address field, with the ability to hide your geolocation text field.