What do you mean by 2 columns ? Is it just two columns of data that you are showing in a solid (single column) page or it is actual two column page layout
(physical page space is divided in two columns) ?

I mean an actual 2 column layout.

If later then things are more complicated. Conventional trickery could involve perhaps inserting number of dummy records inside report cursor to force report to advance to next column (while keeping track of how many rows are printed and how many are remaining before jumping to the next column or page). Maybe doable but minefield. With 3 levels of grouping (headers/footers ?) God help you.

I thought about the dummy record thing, but I think that the only way that could work would be if nothing on the report can stretch with overflow. Unfortunately, on this report, that is not the case.