--- a/src/hugin1/hugin/xrc/data/help_en_EN/Hugin_Control_Points_tab.html
+++ b/src/hugin1/hugin/xrc/data/help_en_EN/Hugin_Control_Points_tab.html
@@ -109,7 +109,9 @@
 </li><li> Click "Add" to add the pair of control points.
 </li><li> In the list of control points, select the pair that you just created, and use the <b>mode</b> pull down menu to select either "Horizontal Line" or "Vertical Line".
 </li></ol>
-<p>Typically <i>horizontal</i> and <i>vertical</i> points are used either to level a spherical panorama<a class="external" href="http://wiki.panotools.org/Leveling_a_Finished_Panorama">[*]</a>
+<p>If the same image is shown on both side, vertical and horizontal control points can
+be added by dragging a line with pressed alt key. The line is automatically added, the <b>auto add</b> option is ignored in this case.
+</p><p>Typically <i>horizontal</i> and <i>vertical</i> points are used either to level a spherical panorama<a class="external" href="http://wiki.panotools.org/Leveling_a_Finished_Panorama">[*]</a>
 or to <a href="Perspective_correction.html" title="Perspective correction">correct perspective</a>.
 </p>
 <h3> <span class="mw-headline" id="Straight_line_control_points"> Straight line control points </span></h3>
@@ -145,6 +147,7 @@
 </li><li> <b>middle mouse button</b> 	Scroll image under cursor
 </li><li> <b>shift key + middle mouse button</b> 	Scroll both images
 </li><li> <b>control key + right mouse button</b> 	Remove control points in selected rectangle
+</li><li> <b>alt key + drag left mouse button</b>        Add line control point (only if the same image is displayed on both sides)
 </li></ul>
 <p><br />
 </p><p>On <b>Mac OS</b> use the command key instead of the control key.
@@ -155,7 +158,7 @@
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-				Retrieved from "http://wiki.panotools.org/index.php?title=Hugin_Control_Points_tab&amp;oldid=15079<a class="external" href="http://wiki.panotools.org/index.php?title=Hugin_Control_Points_tab&amp;oldid=15079">[*]</a>"				</div>
+				Retrieved from "http://wiki.panotools.org/index.php?title=Hugin_Control_Points_tab&amp;oldid=15450<a class="external" href="http://wiki.panotools.org/index.php?title=Hugin_Control_Points_tab&amp;oldid=15450">[*]</a>"				</div>
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