if the mod https://mods.factorio.com/mod/SpecializedFuel is used, then the base stacksize of nuclear fuel will be 10 instead of 1.
the default number is 1 (default stack size), you cannot drop the stack size below 1, ie. stack of 100 can't be multiplied by lower than 1/100.
at the moment, you will be able to configure the multiplication for the base mod of 0.17 of the following:
(parts) - (item stack size to be multiplied) +(mod items)
rocket part - rocket control unit, low-density structure, +cargo rocket sections, +rocket fuel tank, +cargo pod
nuclear fuel - nuclear fuel
fuel with 50 - solid fuel, coal, uranium fuel cell
fuel with 100 - wood
fuel with 10 - rocket fuel, +F1 fuel, +Xplosive fuel
fuel with 20 - +Panda fuel
science packs - will multiply space science pack itself and the packs used in Space Exploration.
i lack certain .lua skills, and willing to support mods, please let me know to update or modify yourself.
work in progress.
attempt to fix the bugs as reported.
add this support to the other mods.
waiting for 0.18 stable then move this to 0.18.
probably storage as well.