spellcheck on multiple fields?

[Savannah Beckett]

Is it possible to do spellcheck on multiple fields in my solr index?  If so, 
how?  The following setup works for only one field:
    
<lst name="spellchecker">
      <str name="name">default</str>
      <str name="classname">solr.IndexBasedSpellChecker</str>
      <str name="field">myfield</str>
      <str name="spellcheckIndexDir">./spellchecker1</str>
      <str name="accuracy">0.5</str>
      <str name="buildOnCommit">true</str>
    </lst>


Thanks.