What is the test for obtaining permission to prepare a settled statement at a personal injury hearing?

An applicant for "permission to prepare a settled statement" must show that the subject matter is in fact part of the oral proceedings. (See rule 36(b).) The test is parallel to that for augmentation of the "normal record" (rule 33(a)) in an indigent's appeal; appellant must establish "with some certainty how the [additional] materials he requests may be useful to him on appeal." (People v. Gaston (1978) 20 Cal.3d 476, 482, 143 Cal.Rptr. 205, 573 P.2d 423.)