In Factorio version 0.17.79 i'm trying to research "Inserter capacity bonus 4", "Production science pack" (violet bottle) not researched (I need to do
). But I can click on "research" to research "Inserter capacity bonus 4, and the magic happens (nothing happens, really... 
), because the number of Production science pack in my invetory is 0, that happens becuase the "Production science pack" tech is not researched. And I need to research, I think... 
Forget it , the possible issue is:
May the Inserter capacity bonus 4 (yellown/brown backgrounded) be "disabled" (red/pink background) until research the Production science pack like the kovarex enrichment processing in captured screen?
Thanks for read
, and my native is spanish, and I want a factorio forum in spanish.... 
... ok, ok, not for now, no problem, but... my english is not the best!, that is a very big problem to maintain comunication and make some suggestions 
...
