2The matters to be so examined or kept under review by a London borough council shall be such of the matters mentioned in the said section 6 as have not been examined or kept under review by the Greater London Council, such other matters as they may be required by the Greater London Council to examine or keep under review or, in the case of a fresh survey under the said section 6(2) instituted in pursuance of a direction of the Secretary of State, such matters as may be specified in the direction.