processed.
<li>\b Tolerance is a maximum distance between nodes sufficient for
merging.</li>
+<li>Activation of <b>No merge of corner and medium nodes</b> check-box
+ prevents merging medium nodes of quadratic elements with corner
+ nodes. This check-box is enabled provided that the selected mesh
+ includes quadratic elements.</li>
<li><b>Exclude Groups</b> group box allows to ignore the nodes which
belong to the specified mesh groups.
</ul>
