AutoComplete - Hide part of the returned items and show them on demand

AutoComplete - Hide part of the returned items and show them on demand

Hi All, After a long time searching, I'm surprised that there are no posts on this issue:
I'm using Jquery UI autocomplete but want to hide several results. instead of them, inside the autocomplete window I want to add a link or button 'show all' that will show all hidden items.
Can this be done?
Thanks