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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Improve Calc auto-filter Help on creating and expanding selection and working with blank lines"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=126447#c5">Comment # 5</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Improve Calc auto-filter Help on creating and expanding selection and working with blank lines"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=126447">bug 126447</a>
              from <span class="vcard"><a class="email" href="mailto:gtimur@gmail.com" title="Timur <gtimur@gmail.com>"> <span class="fn">Timur</span></a>
</span></b>
        <pre>There's advanced way of using autofilter that I don't see explained or linked
if using help with F1.
Per <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED NOTABUG - Filter broken by blank line"
   href="show_bug.cgi?id=119949#c21">https://bugs.documentfoundation.org/show_bug.cgi?id=119949#c21</a>:
Mark the area to which the filter should be applied. Menu Data > Define Range.
Enter Name, Add, OK.
Later, in case not already marked, go to Menu Data > Select Range.
After the area is marked, enable Autofilter by menu Data > Autofilter.

Define Range has it's own help (via F1)
<a href="https://help.libreoffice.org/7.3/en-US/text/scalc/01/12010000.html">https://help.libreoffice.org/7.3/en-US/text/scalc/01/12010000.html</a> but it
doesn't explain or link use in filter. 
There's another link (how do we get there?)
<a href="https://help.libreoffice.org/7.3/en-US/text/scalc/guide/database_define.html">https://help.libreoffice.org/7.3/en-US/text/scalc/guide/database_define.html</a>
which links "Filtering Cell Ranges" at
<a href="https://help.libreoffice.org/7.3/en-US/text/scalc/guide/database_filter.html">https://help.libreoffice.org/7.3/en-US/text/scalc/guide/database_filter.html</a>.</pre>
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