Index: help/C/gcalctool.xml
===================================================================
--- help/C/gcalctool.xml	(revision 1870)
+++ help/C/gcalctool.xml	(working copy)
@@ -2167,6 +2167,21 @@
 </para>
          </sect2>
 
+         <sect2 id="gcalctool-changing-display-area">
+                <title>Changing The Display Area</title>
+                <para>In arithmetic precedence mode, it is possible
+to use the mouse to click on the display area and edit 
+it.</para>
+                <para>All the normal keyboard shortcuts will work, plus
+the addition of:
+<itemizedlist>
+    <listitem><para><keycombo><keycap>Ctrl</keycap><keycap>Delete</keycap></keycombo> which will delete the character to the right of the text cursor</para></listitem>
+    <listitem><para><keycap>Home</keycap> which moves the text cursor to the beginning of the display area</para></listitem> 
+    <listitem><para><keycap>End</keycap> which moves the text cursor to the end of the display area</para></listitem> 
+</itemizedlist>
+</para>
+         </sect2>
+
   </sect1>
 <!-- ============= Keyboard Shortcuts ============================= -->
   <sect1 id="gcalctool-keyboard-shortcut"> 
@@ -2557,7 +2572,7 @@
                              <entry><para><xref linkend="gcalctool-TBL-erase-char"/></para> </entry>
                            </row>
                            <row valign="top">
-                             <entry><para><keycap>Delete</keycap></para></entry>
+                             <entry><para><keycombo><keycap>Shift</keycap><keycap>Delete</keycap></keycombo></para></entry>
                              <entry><para><guibutton>Clr</guibutton></para></entry>
                              <entry><para>Clear</para> </entry>
                              <entry><para><xref linkend="gcalctool-TBL-erase-char"/></para> </entry>
