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+**Editing a puzzle**
+
+**Adding items**  On the left side of the network window are a bunch of toggle-buttons.  If you click on one of them, that one is selected.  Now, click on the network and that device will be placed where you clicked.
+
+**Deleting Items**  If you right-click an item, you should have a context-menu allowing you to delete that particular item.  If the item is locked (edit -> options -> net-tests) then you will not be able to delete it until all the tests referencing it are removed.
+
+**Moving Items** You can drag items around on the map.  You can also select multiple items (drag a select box around them) and move a bunch of them at a time.
+
+**Editing Items** You can right-click an item and "edit" it, or you can double-click an item to edit it.