You're not alone in that request, and deepnight has already said that they'll reintroduce this option in the next update.
Exedze
Creator of
Recent community posts
The "half walls" are called thin wall, they were in previous editions but the latest update made regular walls thinner, so they weren't usefull anymore. Thus they were effectively removed, though you can still use them and their new texture looks really nice.
the little columns are just what happens when you put down a wall without there being walls to any side of them.
Second batch. I'm really proud of these, they turned out great! I created some electronics, and then i spent a day making pipes just because i wanted to have some under the ground then i made some cracks to put around said holes. Definitely going to make more. (btw the small pipes look much better before exporting)
Example:

CCTV Camera
(made of 2 parts)
Computer screen/ tv 
Cracks 

Drone 
Keyboard 
Keycard 
Keycard Reader 
Pipes:
Big

Small

In a Hole 
I'm pretty new to pixel art but i wanted to make some misc textures, so i decided to just go ahead and make these. I hope they turned out well, because i'll probably be doing more.
example:

Anchor 
Bones 
Books

Candle 
Cheese 
Green Hag 
Rails & Minecart

Rat 
Ritual Circle 
Sleeping Bag 
Sword 
Utensils & Plate

Well 












