TL;DR

Either always make Research Queue prioritized or add "Prioritized Research Queue" option either in Research Queue window or in Settings

What ?

If in prioritize mode a Lab will produce the highest prioritized Technology in the Research Queue possible with the available science packs ...

Yes, please.

To pipette requires you have it in your inventory. Which is kind of stupid if remote placed anyway.
Why I prefer to use the copy&paste.

Rail (chain) signals are placed with wrong rotation when using copy&paste.
If you copy a signal from a track in one direction (eg. 45 degree angle) and paste it next to a track in another direction (eg. 0 degree) the signal keeps the original orientation. It does not rotate to the correct ...

Weird, I cant reproduce it any more, after having seen it for two days.

Have tested the same scenario in a full game with 4GW surplus of energy with same difference.

The 2 assembly machines produce identical. But if you remove one of them the remaining will produce more packs per minute. 40 vs 50.

Attached Save file.

If I have:
An "Assembling Machine 3" with 4x"Productivity Module 3" + 4x "Beacons" each with 2x "Speed module 3".
And producing:
"Automation science pack"

The assembly description states:
Crafting speed: 3 (+140%)
Productivity: +40%

And I meassure it produces 50 packs per minute. And it ...