How to Mirror Objects

After the object was placed:

To mirror the objects click on Mirror.

Select in the right window:

H for horizontal mirroring,

V for vertical mirroring,

HV for horizontal and vertical mirroring at the same time

Before the object is placed:

by the H and V- keys of the keyboard.

How to Remove objects

Activate the work area by clicking on the arrow.

Go with the mouse on the yellow object point.

Then press the Del- key.