Help with fast scroll using a list view in xamarin forms PCL

Hey,

Basically what i am trying to implement is a jump list for my list view, currently available in iOS and WinPhone but Android. On Android I read there is something called fast scroll which helps to scroll quickly through the list [link for reference]. I was thinking of making a custom renderer for android's list view and seems like it is not possible yet. Any suggestion on how to accomplish this? or any idea how to activate the fast scroll feature from my shared code?

Thanks in advance.

Link: http://developer.xamarin.com/guides/android/user_interface/working_with_listviews_and_adapters/part_2_-_populating_a_listview_with_data/