about filters in the \ref selection_filter_library_page "Selection filter library" page.</li>
</ul>
</li>
-<li>If the <b>Extrude to Distance</b> Radio Button Selected</li>
+<li>If the <b>Extrude to Distance</b> radio button is selected</li>
<ul>
<li>specify the distance at which the elements will be extruded,</li>
</ul>
-<li>If the <b>Extrude Along Vector</b> Radio Button Selected</li>
+<li>If the <b>Extrude Along Vector</b> radio button is selected</li>
<ul>
-<li>specify the vector along which the elements will be extruded, or select the face (the normale to the face will be define a vector)</li>
-<li>specify the distance to be extruded along this vector,</li>
+<li>specify the vector along which the elements will be extruded, or select the face (the normale to the face will define the vector)</li>
+<li>specify the distance of extrusion along the vector,</li>
</ul>
<li>specify the number of steps;</li>
<li>activate <b>Generate Groups</b> checkbox if it is necessary to copy the groups of
