"(7) Where a provision of this Act confers a discretion on the Authority, the Appeal Board or a court to revoke or suspend the licence of a licensee and the licensee holds 2 or more licences, that discretion may be exercised so as to revoke or suspend, as the case may be, one, some or all of those licences as the Authority, the Appeal Board or the court, as the case may be, thinks fit in the circumstances of the case, and the other provisions of this Act shall, with all necessary modifications, be construed accordingly.".