11.—(1) A licensing authority may at any time vary a licence—
(a)on the application in writing of the licence holder, or
(b)on its own initiative, with the consent of the licence holder.
(2) Variation of a licence under paragraph (1) means changing the details of a licence other than a standard licence condition and includes—
(a)attachment of a condition to a licence of the same legal effect as if it had been attached under regulation 6(5), if the requirements for attachment of a licence under regulation 6(5) are also met, and
(b)removal of a condition that has been attached to a licence under regulation 6(5) or by way of variation of a licence.