Rotate column header text vertically in report page

Our team wants to have a rankings matrix view for the breakdown of an Initiative score for throughout the quarter.
In order for the numbers to be displayed at-a-glance without having to scroll left and right across ten factors with really long names, the column headers would have to be rotated--a key feature in Excel that Aha! simply doesn't have.
Basically, any time I'm using Excel instead of Aha! for planning, that's a huge use-case fail for Aha!