Select
On the Vein Intercepts tab, in the Select group:
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Click the Select tool to select objects in the display. Use the CTRL key to select multiple objects.
  
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Click Polygon Selection to select objects by interactively digitising a new closed string to select the objects within it.
  
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Click Paintbrush Selection to paint over an area and select objects within it.
  
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Click Lasso Selection to draw a freehand shape to select objects inside it. Alternatively, to enter Lasso mode, hold down the SHIFT key as you click and drag the mouse to make a selection.
  
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Click Select Edited to automatically select any and all intervals that have been edited.