I feel like building structures in Grounded 2 is missing an upgrade or replace feature. When building a starting base and adding onto it, then unlocking more build items its a pain in the patooty having to recycle everything and start again, especially if parts are supporting other parts. A "simple" replace with or upgrade with option would help sooooo much!

There is one. When you look at an item there should be a button which has 2 pages on top of each other, when you use this button (RS on controller) it opens up a menu which includes swap variant which allows you to upgrade it

1 the scales on the pine walls our the wrong direction they should be down like shingles. 2 can we get curved outer stairs and curved outer walls in all types so we can make more elaborate designs. And maybe curved pine doors maybe outer versions too

as well you can just place the blueprint on top of the previous building ie. wall or foundation and when you complete the blueprint it auto recycles old building and doesnt effect supports.