ok, now the trouble is that I don't know how to tell the expression that I need the count(lead_id) from the unfiltered set to pivot by month......

I will go to bed an when I awake I will make dummy data, if you would continue to be so kind as to check in again tomorrow. Thanks a lot for help.

Are variables the answer here? Will the counts from unfiltered data set pivot along with the upper dataset if I use a variable?