District Tool

Taking a leaf from city builders, a layer tool that allows me to designate an area with a colored overlay and short description.
I often group structures based on what they are producing--for example a construction parts factory--but it's hard to tell at-a-glance for some buildings. Refineries and mills are the big two, which blur together into a smear of pipes, tanks, and belts when trying to take in my overall settlement plan. Being able to designate this cluster as "Naptha/Hydrogen/Fuel Gas" or some such would help me know at-a-glance what I built something for 10+ hours after I did it without needing to click all the various pipes and buildings to find out.

I also agreed, Especially because when I tried using planned buildings I realized vehicles treat them as there for their navigation even when they haven't started construction and are paused.

Or some sort of "Sign Post"