Each filter can be applicable to \b Nodes, \b Edges, \b Faces or \b
Volumes. You can combine many criteria in one filter, but they all
-must be of the same <b>Entity type</b>.
-\n The \b Add button creates a new criterion at the end of the list of
+must be of the same <b>Entity type</b>. <br>
+The \b Add button creates a new criterion at the end of the list of
criteria. The \b Insert button creates a new criterion before the
selected criterion. The \b Remove button deletes the selected
criterion. The \b Clear button deletes all criteria.
<br>
In the \b Source field you choose if the filter will be applied to
the whole \b Mesh, the <b>Initial Selection</b> or the <b>Current
-Group</b>. If \b Mesh is chosen, the elements satisfying the filter
+Dialog</b>. If \b Mesh is chosen, the elements satisfying the filter
will be selected in the 3D Viewer. If <b> Initial Selection</b> is
chosen, the filter will be applied to the selected elements and the
elements rejected by the filter will be deselected. If <b>Current
-Group</b> is chosen, the filter will be applied to the list of
+Dialog</b> is chosen, the filter will be applied to the list of
elements in the current dialog and the elements rejected
by the filter will be removed from the list.
<br>
algorithm works faster, if this is any other
shape, the algorithm works slower.
</li><li>
+<b>Belong to Mesh Group</b> selects entities included into a mesh group
+defined by <b>Threshold Value</b>.
+</li><li>
<b>Range of IDs</b> allows selection of entities with the specified
IDs.
<b>Threshold Value</b> can be, for example: "1,2,3,50-60,63,67,70-78"
