I have some questions about the vac tubes from BEE2. I want to make a curve or change in direction, but nothing I do works. Connections and just putting them adjacent do not work. Any help?

Once again, it depends on the BEE2 version you're using. If you're using BEE2.2, there's a Button Type property to choose between straight, left turn and right turn. In BEE2.4 you need to place two at each corner (the space between these depends on the set corner size), plus one at each end of the tube. Rotate the handles in the direction you want the player to travel, and then connect them together.