I have a form that has a address field holding inputs for: name address phone etc.
I've added a button on this form/field:
Load my data which I would like to load user details/data.
On click it should load a corresponding address field from user's profile by ajax and use it to fill in form fields.
Form can have multiple address fields so it should know which address field needs to filled with user data.
Button isn't shown to anonymous users of course.