The National Assembly may, if the circumstances relating to a particular appeal make it necessary, require any specified steps to be taken, either in addition to, or in substitution for, those prescribed by these Regulations and may extend the time prescribed by these Regulations, or otherwise required under these Regulations, for the taking of any step but must, before doing so, unless the effect is limited to an extension of time, consult the appellant and the Council and consider any representations which they may make as to the desirability of such a requirement.