A single field selected, data values can fit in two columns per page.
Multiple fields selected, maximum data length of the three fields requires one column per page.
How many levels deep can I report on?
There is no limit to the number of levels. But calculations for how the data is laid out is based on Letter size (8 1/2 x 11) paper. The task will change the orientation of the report if it does not fit in portrait mode.