title: Turn a single partylist field into multiple
body: <p>Is there a way to transform a partylist field like <strong>Customer</strong> in a <strong>Campaign Response</strong> to allow for multiple Contacts/Accounts/Leads?</p>
  
  <p>Although unsupported, I now from <a href="http://jianwang.blogspot.com/2008/05/mysterious-crm-lookup-i.html" rel="nofollow noreferrer">Jian Wang</a> that some attributes of the lookup can be modified in the <em>onload()</em> event like this:</p>
  
  <pre><code>crmForm.all.customer.setAttribute("lookuptypes", "1,2");
  </code></pre>
  
  <p>Is there a similiar attribute that would turn this into a field that allows multiple participants like the <strong>To</strong> field in an e-mail?</p>
  
  <p>Thank you</p>