Simply type /backpack or /bp to move items into your private backpack. This plugin is perfect for SMPs or survival servers, because the backpacks do not get deleted at any reload or restart. Also, in the plugins folder, there will be generated a folder with a config.yml innit where these backpacks/items are saved.

If you want to play challenges with this plugin, make sure to delete the automatically generated "Backpack" folder before any restart

That´s it, hope you enjoy!