Using a Graph Subwindow as a Button

Hello,

I've created a panel containing a number of graph subwindows. I would like to give the user the ability to click on any one of these graphs and have a larger/more detailed version of the graph pop up in another window through running a macro. Is this possible? I'm guessing it would be through the Custom Control functions but I'm finding it difficult to figure out how I would go about doing this. Any help would be very much appreciated!

Thanks!
Andrea