... I will say one quick not about the quick replace. It would be REALLY nice to have a hotkey(holding shift) to enable or disable quick replace (underground/splitter -> belt at least). When building complex structures with a lot of stuff around, it gets really annoying to have a belt move you and ...

I was playing, hard Freeze. Factorio process drops to 0% usage. No response. - 0 mods, vanilla only. - Full Process dump from Windows Available. It's just the factorio process, but is about 2.3GB. Factorio did not auto-generate one. -> https://drive.google.com/open?id=1009BMlpllt0j3JDwBxj9O3vMF41ePqiY