 MWTOP                                                      Menu: (MWALS) MWEDT
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 Levels the top of a 3D multi-layer wall whose top slopes across its width.

         1.   (CHAR) i-single mwall, s-selection group, a-all
         2.   (Y/N) adjust to: y-higher, n-lower edge of wall <y>
      if `i' is selected in prompt 1:
         3. * (IND) wall to change
         4. * (Y/N) confirm choice

 Description:
 This command levels the top of 3D multi-layer walls that have been sectioned,
 i.e., have become complex solid entities  type 9, in such a way that the top
 of the wall slopes across its width. Since the faces of such a wall are
 different heights, you may level the top of the wall according to the higher
 or lower wall face. The resulting wall will have no slope across its width but
 any sloping along its length will not be affected.
 You have the option to level walls by indication, by selection group, or all
 the walls in your current worksheet. Select whether to level the wall
 according to the higher or lower face of the wall. If you selected to level
 the wall by indication, indicate and confirm the wall to be levelled.
