Are you modifiy this? >>
find:
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<div><label for="ao_rrd"><input type="radio" name="do" id="ao_rrd" value="removeredirect" />$vbphrase[remove_redirects]</label></div>
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AFTER place this:
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<!-- Start Abe1 Force Users to Read a Thread -->
<div><label for="ao_mfr"><input type="radio" name="do" id="ao_mfr" value="forceread" />$vbphrase[manage_force_thread_reading]</label></div>
<!-- End Abe1 Force Users to Read a Thread -->
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