This is beyond the scope of a simple feature this was originally supposed to be. Parametrization mostly collects just values and does not care where are they coming from so even if they would not be merged there would be no way to tell which new value should be applied to which variable during ...

Could we have at least "do not merge" checkbox next to the parameter so that it is never merged?
We could start with different values (even though it is really ugly hack) and then have it never merged after.

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Trying to create a blueprint from this works fine. Parametrization, however, does not. You cannot have different parameters for the items as long as they have the same initial value.

Setting them to different values works fine.

This becomes a very weird problem later if you for instance ...

Hi there,

I just wanted to share a creation of bio pollution filter :-). I was just sick of so much red pollution around the map.
I tried tree agri towers first, but they just don't do eat enough pollution to offset the output of biolabs researching.
Then I looked at biter nests (400 per behemoth ...

I'm with you on this guys, this is EXTREMELY annoying. Right after you research that you need to do double action on every recipe selection. It's frustrating, because you have nothing of quality anyway to start really investing your time into that, no recycling machine either.

The UX cost of it is ...