diff --git a/Shorewall-common/macro.BitTorrent b/Shorewall-common/macro.BitTorrent
index 4b2b702cf..96147dfaa 100644
--- a/Shorewall-common/macro.BitTorrent
+++ b/Shorewall-common/macro.BitTorrent
@@ -7,7 +7,9 @@
 #
 #	If you are running a more modern BitTorrent client, then you may need
 #	to tweak the open port range.  This can be done by copying the below
-#	rules into /etc/shorewall/rules and making the necessary edits there.
+#	rules into /etc/shorewall and making the necessary edits there:
+#
+#		Replace 6881:6889 with 6881:6899
 #
 ###############################################################################
 #ACTION	SOURCE	DEST	PROTO	DEST	SOURCE	RATE	USER/
diff --git a/docs/configuration_file_basics.xml b/docs/configuration_file_basics.xml
index bc2668e74..b6afb7ead 100644
--- a/docs/configuration_file_basics.xml
+++ b/docs/configuration_file_basics.xml
@@ -370,6 +370,17 @@ COMMENT</programlisting>The comment line in macro.SSH will not override the
     the Shorewall show and dump commands.</para>
   </section>
 
+  <section id="BlankColumn">
+    <title>"Blank" Columns</title>
+
+    <para>If you don't want to supply a value in a column but want to supply a
+    value in a following column, simply enter '-' to make the column appear
+    empty.</para>
+
+    <para>Example:<programlisting>#INTERFACE         BROADCAST            OPTIONS
+br0                -                    routeback</programlisting></para>
+  </section>
+
   <section id="Continuation">
     <title>Line Continuation</title>