Provided a sollution for 'Multi-Select to move' multiple Shapes positions at the same time

I am not sure if I should call this a Feature Request(?) its more like a feature offering?

I had a use case where I wanted to edit multiple Shapes assets at the same time, and was dismayed to learn it's not supported natively. I saw in the forums someone asking for it and a reply from you Freja stating that it's not yet implemented. 

It's a bit hacky because I am not a professional developer, but I wrote a means to achieve this result that can probably be fixed up into working with a unity selection set instead of a box collider? 

http://paste.ofcode.org/fWRJd2ekLNLH29bkzW7mdp here is a paste of the component being used in the above gif that I made for anyone who wants to toy with it. I waive all rights to the code I wrote in this class or whatever legalese.