### MAPMPEDIT

It modifies the selected polygon geometry.

- The <Add> option adds an existing geometry to the selected polygon (e.g. a ring).
- The <Delete> option deletes a geometry to the selected polygon (e.g. a ring).
- The <Union> option modifies the geometry of the selected polygon with the result of the union of the same geometry with a group of polygon.
- The <Subtract> option modifies the geometry of the selected polygon with the result of the subtraction of the same geometry with a group of polygon.
- The <Intersect> option modifies the geometry of the selected polygon with the result of the intersection of the same geometry with a group of polygon.
- The <include Objs> option modifies the geometry of the selected polygon to include the geometries of a group of objects.
- The <Undo> option undoes the last operation.