To add a group of holes, left-click the "Insert Into Polygon" button located in "Hole"
Adding a group of holes is a 4 step operation:
1. Select the correctpattern designto apply to the holes being added.
2. Create the polygon area where the holes should be added by left clicking on multiple points on the canvas. Double left-click on the canvas to finish.
3. Use the arrow keysto position the holes in the polygon area. Holes inside the area (blue colored outline) will be add to the design and the holes outside the area (grey colored outline) will be discarded.
