-filters have common syntax. For each criterion you should specify the
-<b>Threshold Value</b> and whether we search for the elements that should be
-\b More, \b Less or \b Equal to this \b Value. You can also reverse the
-sense of a criterion using \b Unary operator Not and you should
-specify logical relations between criteria using \b Binary operators
-Or and And.
-\n Some criteria should have the additional parameter of \b Tolerance.
-<br>
-Switching on <b>Insert filter in viewer</b> checkbox limits
+filters have common syntax. The <b>Threshold Value</b> should be specified
+for most criteria. For numerical criteria it is necessary to indicate if
+the found elements should be \b More, \b Less or \b Equal to this
+\b Value. You can also reverse the sense of a criterion using \b Unary
+operator \a Not and you should specify logical relations between
+criteria using \b Binary operators \a Or and \a And.
+\n Some criteria have the additional parameter of \b Tolerance.<br>
+Switching on <b>Insert filter in viewer</b> check-box limits