
I wish it would do the same when you insert modules into an assembly.
Currently, there is some logic behind it that only allows to insert modules of "higher tier", e.g. you can paste an Tier2 production on top of any Tier1 (even if the Tier1 is Legendary with +10% and the tier2 is normal with +6%...) and you can place Tier1 uncommon on top of Tier1 normal, but not rare.
Ctrl-Shift-Left Click should override that logic and even downgrade modules.
Use case: For example here, I totally underestimated my amount of uncommon Tier2 modules and tried to fix it by pasting normal's (which I have plenty). No such luck! I have to manually remove them from inside the GUI and then copy-paste the whole assembly to fix this..