Is Mouse Click inside one of the graphs? (Or the graph that selected unit belongs to)

I did a search, but didn’t find an answer. I probably don’t know what to search for.

But anyways, i got the pro version of the product (awesome work btw) and I am working on a RTS-ish game. I want to implement mouse hover behavior, which means i have to check if mouse is over a reachable graph or not. How do i do that?

I followed this tutorial: http://arongranberg.com/vanillaforums/discussion/284/tutorials-read-this-first#latest
and I got all of it working. Yay! So, i guess I just want to add a “click and go” kind of thing.

Thanks!
Konstantin