I don't know it already have this function or not but I if it is not there I'd request for this.
Suppose I don't have enough space in my storage to store coins and elixir cultivated from X-Mas trees or anything like that. The extra amount would be stored safe in treasury.
I don't know this holds in the recent update or not. But if it doesn't hold, it would be very beneficial for low TH lvl villages life 3 or 4.
