TL;DR
A quicker way to point things (assemblers, miners, belts, etc.) to the direction you want, using the arrow keys, which is currently unused.What ?
Since things in factorio points towards 4 directions, North, South, East, West, I've always wanted to have a quicker way to point an item immediately to the direction I desire, instead of pressing R or Shift-R multiple times.Since Up, Down, Right, Left naturally correspond with North, South, East, West, I think pressing Up should allow me to point an item North. Down, to point an item South. Etc.
We can keep the R and Shift-R. Just add the arrows.