Actually there's an object that does just that; unfortunatly I don't have Fusion2 in from of me at the moment, but I'll make an example for you tonight.
In addition, when you post a question on these forums, it can take a few days to get a response, so don't be too impatient!
Nothing fancy, just shows you how to hide the window into the System Tray and show it again if you right click the icon.
You can use combinations like the Popup Menu object to create things like Right Click menus.