This is a server side mod to allow the user to switch between staff mode and player mode witch provides separate inventories. There is also a deleting stick. I made this mode because there were no other mods for this purpos in fabric 1.21. This project is not finished yet there will be more features. (this mod is still being developed there may be problems with saving inventories if there is a server crash)
commands:
/staffmode
/stafftools