Would be great to have a way to see the current rainwater settings at a glance.
The #1 thing that's missing here is an easy way to see *which* buildings already have pipes attached, without having to click through and switch tabs on each one.
After that, it would be nice to see/adjust the current rainwater engine settings all at once.
Hey there! There is an overlay in the game that does this. You can invoke it by holding TAB. It will show you water types, where engines are installed, and the level at which they are using rainwater.