Say the method first:
You can use anvil to change the name of the project, but it will be displayed in white italics.
The server can use lore editor plug-in or nbt editor plug-in (only after 1.6.4).
Install an all-u-want mod (note that it conflicts with the backpack sorting mod). Just switch to the creation mode, take an item to the shortcut bar, point to it and press the R key, and you can modify it.
This picture shows how to use all-u-want.