Second, Rule 9010 cannot authorize credit bidding by proxy in violation of section 363, because the bankruptcy rules cannot “abridge, enlarge, or modify any substantive right.” 28 U.S.C. § 2075; Dove-Nation v. eCast Settlement Corp., 318 B.R. 147, 151 (B.A.P. 8 Cir. 2004) (“The rules are designed to supplement the statute not replace it.”).