autocomplete

autocomplete

Hi,
I've questions regarding jQuery autocomplete functionality / plugins:

a) unfortunally, the autocomplete widget of jQuery UI 1.8 seems not to support the multiple option. Are there any possibilities to add a multiple function to this widget?
b) if not, jquery.bassistance.de/autocomplete seems to be a great solution. What I do miss, is a behaviour a little bit more like a usual combobox: there should be an arraow button on the right, where you get all  entries when clicking on the arrow without any text in the input field. That is a behaviour everybody is used to. Nice to have: Drop-Down-Arrow button together with the multiple option.