Is the grid shown in the attached image possible with the Telerik ?
I'm prepared to give up on displaying column headers on each group (http://www.telerik.com/community/forums/wpf/gridview/repeating-column-headers-in-every-group.aspx
However, If I can't repeat the column headers further down the grid, i could possibly fake grouping using 'normal' rows and style selectors. I would then need to be able to merge cells in two adjacent columns like in the Xceed or ComponentOne grids. Is this possible?