Hy everyone,  I'm following this project but I'm stuck because I can't get the bus connections without visible wires. In this youtube video at minute 18:04  make connections to the bus, when you click on the first bus and then connect it to the second bus for a moment you see the cable then as soon as you click and make the connection the cable disappears! How do I get this feature, i.e. the bus connections without wires?  The author of the video to whom I asked the same question, replied "You just connect the wire to the pin at the tips of the bus, and it disappears automatically. It is an included feature." I tried but without success. I thought it was a version issue so I installed the latest release but no luck. I can't get this feature. 

Thanks in advance to anyone who will answer me.