1. Provide that depositions may be taken before any person, at any time or place, upon any notice, and in any manner and when so taken may be used like other depositions; and

2. Modify other procedures governing or limitations placed upon discovery, except that stipulations extending the time provided in Sections 3226, 3233, 3234 and 3236 of this title for responses to discovery may, if they would interfere with any time set for completion of discovery, be made only with the approval of the court. A person designated by the stipulation has the power by virtue of his designation to administer any necessary oath.