I'm not certain what you are desiring. If you are seeing decorative blocks in the game that you cannot craft yourself you might be able to snag those by enabling the creative menu. If you mean that you see many additional decorative blocks on the PC version and you want those for console then the answer is that there are no more updates planned for your console version so you won't be able to get those. If you mean that there exists out there decorative blocks that you would like to import into the game then unfortunately the answer is that you cannot mod the files for the console version of 7 Days to Die.
If you are playing PC and want these things then it is very possible but you are posting in the wrong forum.