Im trying to code something in my plugin develop.

There's different fields in user profile, for example "email" address field. Which user can enter their email address; what if user got more than 1 email address?

I would like to have a button let the user to click "Add more email" button and come up with new fields which user can enter their 2nd email address+2nd phone number+etc.

Not sure if elgg already has its own function defined or if there's any examples?

please help...thx alot guys