1. A fiduciary may:
(a) Acquire, receive, hold and retain the principal of several trusts created by a single instrument undivided until division becomes necessary in order to make distributions.
(b) Hold, manage, invest, reinvest and account for the several shares or parts of shares by appropriate entries in the fiduciary’s books of account, and allocate to each share or part of share its proportionate part of all receipts and expenses.
2. The provisions of this section shall not defer the vesting in possession of any share or part of share of the estate or trust.