Re-opening of case/process

If I have a Case which includes two user tasks, I have completed all tasks thereby completed case.
My question.

  1. Do we have any feature in Flowable to reopen case? Can some closed task be reopened and change updates the attribute values in it.
  2. If re-opening is not possible, can we set some specific status after completion apart from “completed”, if this is also not possible, can we add some additional status along with “completed”.