Adds 4 storage tanks, all of them designed to look similar to their vanilla counterpart. A Factorio 2.0 port of the mod "Zithorian's Extra Storage Tanks" by Zithorian.
Fixed in v1.0.4! I removed the "not-rotatable" flag used by the original mod, so copying & blueprinting seem to work just fine now. The only downside is that the entities can now be "rotated" to no effect, but that is a trivial issue (multiple orientations are apparently hard-coded into the storage tank prototype).
