In Designer convert Assign a Task to a Assign a Task to Multiple Users

Often times the initial requirements of workflow are to assign a task to one person, but often for testing purposes and discovery lead to a task that has been initially designed as a single user task that now needs to be a multiple user task. It would be great to easily convert the existing single user task into a multiple person task. This would save a lot of reconfiguration time especially if variables are used further down the workflow. It would also be value added for testing purposes.