An instrument creating an inter vivos trust in order to be valid need not be executed as a testamentary instrument pursuant to section 3 or 3.1 of this chapter, even though such trust instrument reserves to the maker or settlor the power to revoke, or the power to alter or amend, or the power to control investments, or the power to consume the principal, or because it reserves to the maker or settlor any one or more of said powers.
IC 29-1-5-9