Manual editing of navigation data- In the project click on the small triangle next to a Multibeam Survey dataset to expand all its elements.
- Right click Navigation under the Multibeam Survey dataset and select Table View.
- Right click the Navigation data object and select Display.
- In the Navigation table view menu, click the 2D Plot>> button.
- Check the Display marked points box.
- Expand the window to better see the table and the graphics.
- Check the data columns in the data set.
 - In the graphics window, hold the Shift button and click and drag the rubber band around the points you want to investigate.
- Notice that the selected points are displayed both in the table and in the 3D graphics window.
- Use the buttons Rubber band mark (3D window) and Rubber band unmark (3D window) to select and de-select points.
- To enable for deleting points you must click the Edit Mode button.
- Click Close to close the menu.
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