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    Measure

    Key Esc to remove last selection, clear errors.

    Point/Point   (distance)

    Measures the distance between 2 points.

    Points on subModels cannot be selected;
      but you can use all display-points -
      (switch off checkbox "Shade").

    Point/Object  (normal distance)

    Measures the normal distance from point to object.
    Objects can be line or circle or curve