Unless any separate written agreement provides otherwise:
(1) Each cotrustee shall be compensated as specified by the terms of the trust, as each trustee may have agreed or in accordance with a published fee schedule, and such compensation among cotrustees shall not be apportioned unless they shall agree otherwise; and
(2) The annual fee paid pursuant to subparagraph (c)(2)(B) of Code Section 53-12-210 shall be apportioned among trustees and successor trustees according to the proportion of time each rendered services
during the year.