title: Specifying schedule (start date, finish date) for tasks in CMMI process Azure DevOps boards
body: <p>I have set up a project in Azure DevOps, selecting the CMMI process as setting (mainly to be able to schedule the start and end dates of each work item).
  However, for tasks, I am not able to select neither &quot;Start Date&quot; nor &quot;Finish Date&quot; - both appear with a lock button. I am able, however, to set up both dates for higher level work items such as Features and Epics.
  I have tried with both Stakeholder and Basic access, does not work for either of them.
  Is there any way on how to configure this? I have not issue with converting from CMMI to another type of project.
  Thank you.</p>