can the executor of the estate in a trust do what he wants with the trust or does he have to honor what is in the trust

As a trustee, you stand in a "fiduciary" role with respect to the beneficiaries of the trust, both the current beneficiaries and any contingent beneficiaries named to receive trust assets upon the death of those entitled to income or principal now. As a fiduciary, you will be held to a very high standard. One of your jobs as trustee is to keep track of all income to, distributions from, and expenditures by the trust. Generally, you must give an account of this information to the beneficiaries on an annual basis.