There are 4 basic Boolean Operations in Mockitt: Union, Subtract, Intersect, and Exclude.
Take the selected shape as a union. The result of the union will be the sum of two vector areas.
Subtract the shape formed by overlapping the top layer with the bottom layer.
Keep the overlapping part of the layers after the operation.
exclude the opposite of the intersection set and show only the non-overlapping areas of the layers.
Note: Boolean Operations only work when multiple layers are selected. One single layer (which has not been Boolean-operated) is not available to Boolean Operations.