-<html>\r
-<body>\r
-tree \r
-</body>\r
-</html>\r
+<html>
+<!--
+ * Jalview - A Sequence Alignment Editor and Viewer (Version 2.7)
+ * Copyright (C) 2011 J Procter, AM Waterhouse, G Barton, M Clamp, S Searle
+ *
+ * This file is part of Jalview.
+ *
+ * Jalview is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * Jalview is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
+ * PURPOSE. See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along with Jalview. If not, see <http://www.gnu.org/licenses/>.
+-->
+<head>
+<title>Removing Redundancy</title>
+</head>
+<body>
+<p><strong>Removing redundancy</strong></p>
+<p>Selecting the option in the Alignment window's <strong>Edit</strong>
+menu or pressing <strong>'CONTROL+D'</strong> brings up a dialog box
+asking you to select a threshold. If the percentage identity between the
+aligned positions of any two sequences in the visible alignment exceeds
+this value, the shorter sequence is discarded.<br><em>Note:</em> The redundancy
+calculation is done when the dialog box is opened. For large numbers
+of sequences this can take a long time as all pairs have to be compared.
+</p>
+</body>
+</html>