The following is a list of all the properties that are specific to 2D bubble charts:
UltraChart.BubbleChart.BubbleShape
UltraChart.BubbleChart.ChartText
UltraChart.BubbleChart.ColorCueColumn
UltraChart.BubbleChart.ColumnX
UltraChart.BubbleChart.ColumnY
UltraChart.BubbleChart.ColumnZ
UltraChart.BubbleChart.NullHandling
UltraChart.BubbleChart.SortByRadius