I have designed a CR which looks like a form for woker filling information.
to maximize the usage of A4 size paper, my tentative design the A4 size paper has 2x2 forms.

Now, I can show the report in 2x1 (top and bottom look like) but how to show it in 2x2 (top and bottom with 2 columns showing form) ? where to set?

I found I cannot decrease the margin of right hand side. i am sure there is no object in the unused space at right hand side. Is it affected? how to set?
Thanks for all expert advise.