I created a datapack that demonstrates how mighty the new /data modify command is. It adds a GUI to your world wich you can access using /function copydata_fvf:give and with which you can copy data from the pages of a book and quill to any of the below targets:


Command:Copies from the first page to Item.tag.BlockEntityTag.Command. (used for command blocks)

Display Name:Copies from the first page to item.tag.display.Name. (must be in JSON format)

Lore:Copies the contents of multiple pages into item.tag.display.Lore. (1 page in the book converts to one line of lore) (must be JSON format)

SkullOwner:Copies from the first page into item.tag.SkullOwner. (used for player heads)

Structure Block Info:Copies from the first page into item.tag.BlockEntityTag.name and from the second page (if exists) into item.tag.BlockEntityTag.mode (only SAVE/LOAD/CORNER/DATA make sense). (used for structure blocks)

Download: dmanager.stevertus.com/pack/fanvonfazon:copydata
Video (GER): youtu.be/RwMNvSOaTZ4

created and tested in 18w45a