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GGU-STRATIG: "Define polygon" menu item -
GGU-STRATIG: "Edit polygon" menu item -
GGU-STRATIG: "Delete polygon" menu item -
GGU-STRATIG: "Delete all polygons" menu item -
GGU-STRATIG: "Move polygon point" menu item -
GGU-STRATIG: "Edit polygon point" menu item -
GGU-STRATIG: "Paste/Delete polygon point" menu item