Increase the storage capacity. The ability to unlock via tech tree storage buildings with a higher capacity, or even a larger building with a 3x3 footprint that holds 4x the amount of the 2x2 storage, see the attached screenshot. i use all these for module challenges and whatnot for temporary production without haveing to rebuild entire infrastructures. Instead of chaining a bunch of little storage buildings together for more storage, it would look neater and save a LOT of space if we could unlock a high cpacity single building