One click add modules?

I've seen some players inserting modules in buildings by just a click instead of the normal behaviour where you open the interface. Is that something that can be done without modules? I think one player uses some kind of blueprints that is like a "dummy" for inserting modules into any building. When he selects the BP, he just then clicks on the building once for each module he want's to insert. It seems that the BP works the same, regardless of building.