We added a beta of a power pivot function for campaigns, To beta test go to the campaigns tab in fundraising, select 2 or more campaigns in the top right campaign selection, click on load data and then on load pivot.
You can change around the groups by dragging different fields to the group box. You can move fields up or down with drag and drop. You only have to press Load Pivot again to reload with new groups.
More detailed instructions for regular users will follow iy"h.