There is a workaround to do this, but its not very elegant. You have to use link mode, then make your javascript function manipulate the XML with isSliced parameter on the set elements. This way you will be able slice and do other operations at the same time.
I hope FC will support a combination of links and slicing in the future. It would be very handy! :w00t:
In my opinion the user must be able to select 0, 1 or many slices by default (Just like slicing works today), and it should be possible with link on these.
To push in previously selected slices automatically, an extra attribute must be specified in the chart.