I played 39 hours and still use manual filling, not everywhere, but often! I don't know what the game will give me later, but now quick buttons would help me a lot!

I encountered this in the early stages of the game. I had to deliver oil and iron ore at the same time.

Thats allow to avoid such situations and will give more space for other belts


But it only my opinion...

TL;DR

Double railway track

What ?

Allows to build double railway track at same time.

Why ?

Quick railway roads building...

TL;DR

Allows to rotate underground belts.

What ?

Why ?

Will open new possibilities of use belts and underground belts. Will allows to build more flexible items delivery roads.

TL;DR
Quick stack buttons for chests, factories etc. Allow quick stack items "from your"/"to your" inventory. Allow quick factories filling etc.

What ?
1) Stuck similat. Quick stack button that allows you to stuck similar items from your inventory to the chest's.
Before "Quick stack"
https://i ...