In order to calculate the Voronoi diagram click 'Voronoi' item in the 'Analysis' menu.
Choose region
Then you will see dialog where you will be able to choose region where Voronoi overlay will be shown.
Voronoi activity
After clicking on the 'OK' button corresponding activity will appear in the Background activities panel. When calculation completes, the overaly will be rendered to the image region.
Export Voronoi
You are able to export Voronoi overlay as PNG image. You need to click on the 'Export Voronoi' item in the 'Tools menu' and then choose a folder where images will be exported
Updating Voronoi
Changes on a population that are automatically propagated to the Voronoi overlay include: