One question...

Theme: Track, conductor path

How can I move a signal segment? I always get a new corner / vertex instead...
If you want to move the element that you hit, you can drag&drop it directly, if you do not hit the small black box in the middle, but the track in between the 3 black boxes:

1 (Image 1: Drag&drop by M1H here!)

Hitting a black box instead, will move or create a corner.