How to dig a hole

After having built a cube (see previous chapter), here's how to dig a hole in one side of the cube.
Choose the mode HOLE. Then click on the pyramid on the face of the cube where you want to dig (see the red circle).

Create the points of your hole by clicking on the face in clockwise order. If you click incorrectly, press the DELETE key on your keyboard to delete the last point created. Click on the Undo button to remove the entire hole.

Click again on the first point of the hole to finish.

And here's your hole.

To move a point of the hole, choose mode MOVE and select the option SINGLE POINT to move a single point without influencing the others. You can then select a point of the hole and move it with the arrows. You can also enter X, Y, Z coordinates to move it to a very precise position. To delete a point click on the Delete button, if you delete all the points the hole disappears.

You can create up to 16 holes on the same facade.
There, now you are the specialist for digging holes !