http://wol.jw.org/en/wol/d/r1/lp-e/202012206#h=0:0-3:583 "A trustee or executor should be aware that whether the estate is large or small, liberties should not be taken with the assets. Any bequests to a legal entity used by Jehovah’s Witnesses are dedicated funds that belong to Jehovah’s organization.— Luke 16:10; 21:1-4 ."
This is true of anything involving wills and trustees. As long at the request is legal the trustee has to honor it.