Where's the Game Properties Menu Item?

I’m about to install Team Fusion mod and have a question. That is, directions say to “ Verify Integrity of Game cache” ”. To do so I should click on Properties on the game in game Library. I see no pull down menu that includes a “properties” item. Where is it?
Thanks.

Try a right click

That did it! "Properties" only shows up when in "List View".
Thanks,