Hey,

using a Pie Chart is seemingly only useful in combination with an UltraItemLegend. However, unlike the UltraLegend (which I use for UltraDataCharts), the UltraItemLegend doesn't allow for orientation changes. 

Thus, if I add the legend to the bottom of my pie chart, this is how it looks:

Meanwhile, UltraLegend DOES allow for orientation changes, which looks much nicer.