+merging.</li>
+<li><b>Exclude Groups</b> group box allows to ignore the nodes which
+belong to the specified mesh groups.
+</ul>
+
+<li><b>Automatic mode:</b>
+<br>
+<ul>
+<li>In the \b Automatic Mode all Nodes within the indicated tolerance
+will be merged. The nodes which belong to the groups specified in the
+<b>Exclude Groups</b> will be not taken into account.</li>
+</ul>
+</li><br>
+<li>If the \b Manual Mode is selected, additional controls are available: