2-y axis graph in access

[LeenOoo]

Hi, I'd like to create a 2-Y axis graph as part of a report that I have all set up and running in Access. But, of course, I can't figure out how to make the graph.

I would like to show the number of sales and the median sales price as my two Y-axis. The X-axis is the month. And I'm reporting for four areas.

I have a query that contains all this data, but I don't know how to assign the fields when I create the graph. I've tried using the wizard and doing it by hand.

Thanks for any help! I might just have to make multiple graphs, which wouldn't look as nice...