Just like the title says. I am having a lot of trouble placing these fittings. I have attached a drawing showing exactly what I am talking about. I started with the upper line, ran it to the left. created a 45 degree elbow and ran the pipe up from there. I then tried to add the wye in place of the 45, and I had to keep grabbing the add pipe pick point, and it would either just drag the pipe out through the 45, or give a no part found error. Any suggestions will be greatly appreciated.