Just put
@CHARACTER1 stands screen left AND CHARACTER1 faces right
&CHARACTER2 stands screen left AND CHARACTER2 faces right
&CHARACTER3 stands screen right AND CHARACTER3 faces left
&CHARACTER4 stands screen right AND CHARACTER4 faces left
Just put
@CHARACTER1 stands screen left AND CHARACTER1 faces right
&CHARACTER2 stands screen left AND CHARACTER2 faces right
&CHARACTER3 stands screen right AND CHARACTER3 faces left
&CHARACTER4 stands screen right AND CHARACTER4 faces left