<ol>
<li>Display your mesh in the viewer.</li>
-<li>Choose <b>Controls > Skew</b> or click <em>"Skew"</em> button of the toolbar.
+<li>Choose <b>Controls > Face Controls > Skew</b> or click
+<em>"Skew"</em> button of the toolbar.
\image html image40.png
<center><em>"Skew" button </em></center>