Index: ex_topo.lht
===================================================================
--- ex_topo.lht	(revision 900)
+++ ex_topo.lht	(revision 901)
@@ -351,6 +351,27 @@
         }
         rot = 0.000000
        }
+       ha:text.864 {
+        string=N3; x=22.0mm; y=1.5mm; scale=100; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.866 {
+        string=N3; x=51.75mm; y=1.5mm; scale=100; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
+       ha:text.867 {
+        string=N3; x=81.25mm; y=1.5mm; scale=100; fid=0;
+        ha:flags {
+         clearline=1
+        }
+        rot = 0.000000
+       }
       }
       color = {#104e8b}
     }