how to edit multiple fields

Just coming to grips with CC6. I have a pre-existing Multiple set of controls in Fields. How do I add another field to that multiple? The drag control doesn't seem to work and I can't create a new field in the multiple.
​
Nick

Hello,
​
I have de same problem. Have somenone to help us?
Thank you

Hi
On the 'Views' tab' and the 'article_form_fields' view and then

1. Click Multiple
2. Click the green tick in the new control created
3. Click as many fields that you want to add to that Multiple

Not sure why but I can't upload screen shot to illustrate. Copy sent to your PM (I hope)
​
Nick