Use these commands to cut, copy, paste or delete points and polygons.
All lines in the list will be selected.
All lines in the list will be deselected.
You can use these commands to select all rows, deselect all rows or invert the selection.
The mouse pointer changes into cross hairs and you can draw a selection area with the mouse. All lines within the area you draw are selected. If some of the rows that you want to select are out of view, drag above or below the Structure manager window. The window will then scroll until you drag within the window once more.