- Select the "profile" layer and set it off. Click on the light bulb iconĀ
- Check that 'Also lower entities' is not checked in the delete menu (to avoid delete the lines of the surfaces)
- Choose Geometry->Delete->All Types (or use the GiD Toolbar).
- Select all the lines and surfaces that appear on the screen.
- Press ESC to conclude the selection of elements to delete.
- Select the "aux" layer and delete it .Click lick in the icon
- Select the "profile" layer and set it on.
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