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Ctrl+click to select a single label text. User can drag it to new position. Ctrl+Double click to open Plot Details dialog. Individual node will be created for special point. User can go to Labels tab to customize the special point's label.
For Special label, if Auto Reposition to Avoid Overlapping is set to Auto, it will change with all data labels. If it's set to None, changing other labels will not affect the special label's position.
