title: How to add a custom tracking field in Alfresco Activiti Workflow
body: <p>My aim is to add a custom field in a workflow which tracks the inputs during the workflow steps as the bpm:comment property.</p>
  
  <p>So i tried to add a simple custom property field in bpm-model:</p>
  
  <pre><code>&lt;type name="bpm:task"&gt;
           &lt;parent&gt;cm:content&lt;/parent&gt;
              &lt;properties&gt;
              &lt;property name="bpm:test_field"&gt;
                      &lt;type&gt;d:text&lt;/type&gt;
                  &lt;/property&gt;
   ...
  </code></pre>
  
  <p>Then i added a "field filter control" in the Alfresco WorkDesk bootstrap.xml  and the flow basic step control shows my new field.</p>
  
  <p>Unfortunately the field won't show the history input.</p>
  
  <p>The task inherits every time the field but won't historize anything.</p>
  
  <p>I didn't understand why...can anybody help me?</p>
  
  <p>thanks!</p>