Often between the sides of the polygons of different nets you need to set a certain clearance. As well as when setting the clearance for trace segments, here you must first click on the movable side, and then click on the non-movable side, i.e. select two sides of the area while holding the
CTRL button. And then use the
The clearance value is shown in the status bar at the bottom of the program window. You can then change the clearance by pressing the
F2 F3 buttons. The modified clearance value will be stored in FreePcb-2 memory until you press the file save button at the top left.