diff --git a/Documentation.html b/Documentation.html
index d572174c5..e96044b0a 100644
--- a/Documentation.html
+++ b/Documentation.html
@@ -1829,7 +1829,8 @@ $cfg['TrustedProxies'] =
     <dd>The colors (HTML) uses for the pointer and the marker in browse mode.<br />
         The former feature highlights the row over which your mouse is passing
         and the latter lets you visually mark/unmark rows by clicking on
-        them.<br />
+        them. Highlighting / marking a column is done by hovering over /
+        clicking the column's header (outside of the text).<br />
         See <tt>themes/themename/layout.inc.php</tt>.</dd>