area

Hello, all captains.
I would like to propose an idea for regions. That areas with production and houses could be combined into regions. And further that in the statistics could be displayed consumption and production in these regions. For example, I have a remote production that needs water, and I have a source nearby. And I need to manually calculate what volume of water production is needed for this region. When there are many different buildings it can be difficult to recalculate every time. I think it is quite useful and not so difficult to implement.