When I was redoing the report I did not have time to explore that completely ( I was satisfied at that time with the how the report was working). Hopefully someone smarter than me can post how to do that. It will be a few weeks before I am able to have time to explore adding the start & end dates.
@QMcKay had also posted a Customer Purchase History tutorial. Although he used a script to generate the report. Maybe that will be of some help: