Additional a handy lock function for inventory slots. Steroids/Packmule have been changed and unlock another 10/12/15 slots (to rach the maximum).
10/12/15 additional slots can be gained through different pocket mods. All backpacks can be placed as a block with inventory. These can be produced in different ways and unlock up to 60/96/120 inventory slots. This server side mod changes the existing inventory system and adds vanilla friendly backpacks of different sizes.
