Hi, I'm very new to development, and am creating my first game. I'm creating an open world with several buildings that I want to be able to walk through (as a first person character) rather than build these in leadwerks itself I am wanting to create them externally, in sketch up and import as objects (they are already made and are pretty big) am I able to import them and make it so my character can walk around them? not sure if this is a silly question or if it makes total sense :/