Can Chart display 2 year at a time in attached sheet

I can see graph of two different zone, but I want to see two different year for the same zone at a time. If I select same zone from both drop down list it is showing single graph for a single year. Can I compare this single graph (i.e for one zone) with two different year at a time (not later by choosing option). I think check box rather than option button may help.

I also require a Message Box when I select zone. How can I have graph, picture (which is solved) and a Message by selecting a zone from list?

Is there any helping hand to solve this problem? Waiting to give a heartfelt thank.

Thx for having patience to read this out.