 XJUN                                                               Menu: MWALS
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 Creates an X-junction between two multi-layer walls.

         1. (IND) wall to be cut
         2. (Y/N) confirm choice
         3. (IND) wall to remain uncut
         4. (Y/N) confirm choice

 Description:
 This command creates an X-junction between two multi-layer walls.
 Point to the wall to be cut, i.e., to be broken by the kept wall. Confirm the
 selection and then point to the wall that will be kept. Confirm the selection
 of the second wall. The system redraws the two walls with the X-junction
 resolved.
 NOTE: The X-junction solution used by the system is the default T-junction
 solution for the specified walls where the "wall to be cut" is the "leg" of
 the T (on both sides) and the "wall to remain uncut" is the "head" of the T.
