Allows you to change stack size of any item in the game, grouped by item subgroup.

For example want to have your belts stack to 1000? Set the belt stack size to 1000, and it will set all belt items to a stack size of 1000.
Some items do have lower max values at an attempt to maintain balance to an extent.
If an item has a special circumstance or altered max value there will be a tool tip for that item group.

If you have any suggestions or tips please let me know as this is my first Factorio mod.