With OALLEY, you can easily adjust the shape of your areas, by merging two different areas or by cutting out part of one.
You can use the “Cut out” tool to remove part of an area. This can be useful for adjusting one area’s border to fit that of another, or for shrinking one area by cutting out part of it that is covered by another.
To cut out part of an area, go to the map.
When you’re looking at the map, right click on the area you’d like to shrink, and choose “Subtract” from the menu:
The next step is to click on the part area you’d like to remove, and confirm your choice:
Now you know how to cut out part of an area, in order to shrink it or adjust its outline.
To go further: