
have more stuff for base building in general, ideas such as:
more external decorations
internal growbeds (and plants that grow inside/ out of water)
more decorative plants (also hanging plants)
more statues and wall mounted ones too.
ability to make round growbeds/ wall sections and large round windows
more beds, tables, rugs etc
some decorations and other items that can be placed on tables
ceiling/ floor windows
allow players to build the modular sofas and breakfast bar that can be found in some of the ruined bases.
scientific decorations for making a lab scene
the stereo from below zero
verticle corridors (like the ones in the previous games)
aquariums (like in the first two games)
bigger doors
more decoration crates
ability to recolour most base peices (and lighting)
more axum lighting/ objects
maybe some decorative rocks or placable coral that we could use to camoflage our bases.
doors for the corridor piece
plant walls from the first two games but expand them so can take up all/ most of a wall.

You do realize that alot of what you are asking for was already developed for the first two games.
Perhaps a bit of patience and let the Devs actually finish creating the biomes before expecting such add ons to appear?

yes.