Pie Graph Data Point Label

[Neepa]

I've a pie graph - but some of the labels are too big for the slice.  Is there a way I can add condition that if the slice is of certain percentage of the pie - show the label at outsideend.  Right now my labels are set to be shown at insideEnd.

Also, is there a way to explode the slices in pie graph?

Please help.

Thanks,