-<b>Fixed nodes ids:</b> some nodes keep their location during
-smoothing. If a mesh is built on a geometry shape, the nodes built on
-geometrical edges are always fixed. If smoothing is applied to a part
-of a mesh then the boundary nodes of an elements set are also
-fixed. Any other nodes may be additionally fixed. Fixed nodes can be
-selected manually or by filters too.</li>
-<li><b>Smoothing Method:</b>
+
+<li>define the <b>Fixed nodes ids</b> that should remain at their location during
+smoothing. If a mesh is built on a shape, the nodes built on its
+geometric edges are always fixed. If the smoothing is applied to a part
+of the mesh, the nodes of boundary elements are also
+fixed. It is possible to additionally fix any other nodes. The fixed nodes can be
+selected manually or by filters, just as the smoothed elements.</li>
+<li>choose the <b>Smoothing Method:</b>