When you build a cluster of improvements it is advantageous to maximize the adjacency bonuses, however not always is a desired building available yet.
Lets say i want to build a manufacturing cluster of a ring of production plants around a fusion plant (or "Manufacturing Capital" / "Singularity Plant"), but the fusion plant has not been research yet. I can either:
- Build the ring and leave the center open. But this losses a lot of adjacency bonus levels.
- Build the ring and build a production plant in the middle and destroy/replace it later with the fusion plant. But the auto upgrade will upgrade the center production building, thereby wasting production (and therefor timely notification that the planet production is idle).
- Play with auto upgrade off. But that means: Lots and lots of manual checking and issuing build orders.
If possible i would like to be able to build the center production building for the adjacency bonuses, but to tag it to exempt it from auto upgrade. I envision something like placing a "Do not upgrade" icon over that specific building.