‘with respect to such incidental, consequential and supplementary matters as are, in its opinion, necessary to secure that the scheme is fully and effectively carried out.’
“32. It appears by now to be fairly well settled, and certainly it is my own view, that the word “necessary” in this context does not mean “indispensable”, but rather means something falling between indispensable and desirable. In addition, the word has to be read in the context of the phrase as a whole, so that if a step is necessary in order to implement the scheme in an effective and commercially sensible way, it will be perfectly proper to make an order under section 112 for that purpose.”