Coral UI Multifield add new Field Item

[ramiro_anacona]

Hi, I'm using the Multifield component on a content fragment model, I want to add a new option from JavaScript, right now I'm doing it with:

$field.append(new Coral.Multifield.Item());

It's working but I don't know how to add a value for that new field item.

There is a way to do this?

Thanks