My mind is blown How do I add an inventory slot?

My mind is blown How do I add an inventory slot? minecraft inventory slot png Relevant png images casino chips dice and cards illustration, Online Casino Casino game Slot machine Gambling, game, room png 960x801px ; gray slot minecraft inventory slot png png file as the menu selection textures, there are two versions of the 3D Item Models Minecraft Texture Pack · 3D Item Models 16x Minecraft 6

minecraft inventory slot png Fixed inventory slots can only be added and removed using game commands You can use the setfixedinvslot command to set a fixed inventory slot to a specified

minecraft slot png How can I set unusable inventory slots? Just like this screenshot from the server Wasted by ShotBow I also want to change the name of the SpigotMC - High Performance Minecraft Want a better Minecraft server inventory would currently be slot -999