This is an experimental feautre introduced in 0.3.11.
It is possible now to draw any kind of diagonal wires.
There are ways to do it
- Edit an existing wire:
1- Place mouse pointer in a wire corner.
2- Press "Shift" key and move it.
- Make a diagonal wire while drawing a connector:
1- While drawing a connector press "Shift" key.
2- Now that wire will be "free" of horizontal or vertical constrains.
3- Create a normal corner to finish diagonal mode.
Here you can see a basic video: https://youtu.be/SDEAz4Fav8Y
