TL;DR
A smart placement mode which makes belts automatically rotate at corners when placing them without releasing the mouse.What ?
Better than many long words, I could easily add an edited gif to show what I mean by smart placement:Why ?
It's kind of annoying and unnecessary to keep releasing the mouse, pressing the R button, and then continue building the long belts in the Game,Here's the "unedited" gif I had, notice how I have to press R 3 times at the right to get into the orientation I want.... If I tried to do the placement like my suggestion, it just looks like this which can't be much useful in-game: