Drilling through to notes when only using "Rows" no columns, no values.

I have a large query that produces leads but also has a notes column. This causes leads to be repeated over and over if there are multiple notes on a lead. 

What I want to be able to is show only the leads data (don't bring in the notes into the matrix/table report in other words) but if someone is curious and wants to drill further on one particular lead to see notes, then be able to do that.

I have played around with matrix drill through etc. and have not had success. I think part of the problem is that there is no need to use values here -- only rows. Any way to do this? Thanks.