Mass copy

[ConlanSykes]

I've run into a problem in the later game where I have to spend 20 minutes just placing down the same factory or store over and over and wanted to recommend an option to hover over a group of factories or stores or really any object the user wishes to copy, an of this use could be the user wanted to copy two factories that produce CPU's instead of placing two more factories and setting them up they can just copy them.

[rafaeltodero]

Essa função seria fantástica, tornaria o trabalho muito mais fácil.