How to set to Webform's fields a 'Number of values' setting like in default content types? Yeah, so in content type fields like Article or any other when you add a field it has an option 'Number of values' and if you select Unlimited it adds a button 'Add another item' when creating a content.

So I was thinking is it possible to do that with Webform module's forms? Let's say a user is filling in the form, let's say he fills in his phone number into Phone number field and then maybe he has a another phone number, so he could click 'Add another item' and that would open up a second field of a Phone Number field.

To be exact, I need that Unlimited option to work on Webform fieldset fields. So if I have a fieldset of three fields, I can click 'add another item' and it opens up a 2nd fieldset.
Webform Addmore


  Webform Add More enables selected fieldsets to be initially hidden and
  progressively shown with an Add more button, mimicking CCK multiple
  fields. The approach was proposed by Bartezz, and code originally
  implemented by span and kranklin 1. This module adds a checkbox
  setting to webform fieldset components to select which should have Add
  more functionality, as well as an advanced setting to override the
  button label per Webform.