It is posible chnge the stack's size??

I am also interested in this.
Atm in a chest fits only 2 stacks of 100 stacked items per chest space.
This is the same density leaving the items unstacked.
Changing this values in the options, separate from the normal stack size to 10 or 20 would be nice.

I didn't add it to the base mod to keep the scope and intent of this mod unaltered, but I added a setting in https://mods.factorio.com/mod/deadlock-experiments that allows for the increased density you're looking for :)

Thx for the hint.
Sadly i always getting conflicts using deadlock-experiments with krastorio 2 ans space x.