20 Pa.C.S. § 7604
(a) Outright or in trust.— Subject to section 7602(e) (relating to exercise of powers of appointment), unless expressly prohibited by the instrument creating a power of appointment, a donee may exercise a power by appointing in any manner, including, but not limited to:
(3) Creating a broad or limited power of appointment exercisable by any one or more objects of the original power to whom the donee could have appointed outright, even if some of the objects of the new power are not among the objects of the original power, provided that if the original power is a limited power, other than a power to appoint to the donee's creditors or the creditors of the donee's estate: