<li>The main list contains the list of volumes. You can click on
a volume in the 3D viewer and it will be highlighted (lock Shift
keyboard button to select several volumes). Click \b Add button and
-the ID of this volume will be added to the list. To remove a
+the ID of this volume will be added to the list. To remove the
selected element or elements from the list click \b Remove button. <b>Sort
list</b> button allows to sort the list of IDs. \b Filter button allows to
apply a definite filter to the selection of volumes.
<li><b>Into 5 tetrahedra</b> and <b>Into 6 tetrahedra</b> allows to
specify the number of tetrahedra a hexahedron will be split into. If the specified method does
not allow to get a conform mesh, a generic solution is applied: an additional node
-is created at gravity center of a hexahedron, serving an apex of tetrahedra, all quadrangle sides of the hexahedron are split into two triangles each serving a base of a new tetrahedron.</li>
+is created at the gravity center of a hexahedron, serving an apex of tetrahedra, all quadrangle sides of the hexahedron are split into two triangles each serving a base of a new tetrahedron.</li>
</ul>
</li>
-<li><b>Select from</b> set of fields allows to choose a submesh or an
+<li><b>Select from</b> a set of fields allows to choose a submesh or an
existing group whose elements will be automatically added to the
list.</li>
</ul>
