MCP (Mod Coder Pack) Paragraph (§) - Allow characters?

Moin dear community ^^,

I started to write my own Minecraft clients with the help of the Mod Coder Pack and wanted, for example, that you could name your worlds directly in Minecraft with the § symbol (yes I know that can be done with NBTExporer etc.). Or, for example, to write signs and books without always having to copy everything… Can someone help me to unlock the paragraph sign? Unfortunately, adding the character to Net.minecrfat.util.ChatAllowedChracters does nothing.

You don't have to edit something deep in MC, you won't be able to rename your world, because you are in this world right now.

Minecraft pocket edition