Casting Colored Glass Shadows?

Hi! I just downloaded Twinmotion today for my architecture classes. I have a mesh that is meant to have colored glass behind it. I earlier today found a setting to get this to work, and I cannot for the life of me find it again. I have ray tracing on. The thing I am remembering was a check box that said shadows or something like that. I cannot find it. Here is an image of what I am trying to do, since I exported what I did before. Any help would be greatly appreciated. Thanks!