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Save: If it's an existing map it will save the map with a newer version at the existing location. You will have to enter a comment prior to the save
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SaveAs: Allows you to save the map into a new location with a new filename, if needed
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Redo: Standard redo of map steps (after Undo)
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Load Source Interface: Load source interface (Map From) into the map. Details of interface load can be found in Loading Interface in a Map
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