I'm also looking for something similar to this....
Quolte from another forum:
"Is there a way to 'activate' an item in the list of items inside Scrollable? The thing I want to accomplish is this: call the api.seekTo() method inside a piece of javascript (this part works) and then visualy show the user what item in the Scrollable list it was that was sought. I know I can influence the appearance of an item clicked but what I do want is tell the scrollable to activate an item (and scroll if neccecary to bring said item into view). So clicking I understand, telling or programaticaly setting the item _without_ clicking and make it stand out (by using the activeClass property)."
Is this possible?