Gen 5 Pokémon Black font (NFTR) – adding glyphs / Turkish characters

[gif12]

Game: Pokémon Black (Gen 5, NDS)

Goal:
I want to add Turkish characters (ç, ğ, ş, ı) by editing the font,
or repurposing existing unused glyphs.

What I’ve done:
- Extracted ROM (dslazy)
- Found fonts in a/0/2/7 and a/0/2/8 (NARC)
- Extracted 00000000.bin / 00000007.bin
- Decompressed with LZ10 (Kuriimu) → .out files
- NFTRedit cannot open them (invalid NFTR / load error)
- CrystalTile2 NFTR editor also fails

Observation:
These appear to be Gen 5 offset/compressed fonts with width tables,
not standard Gen 4 NFTR.

Question:
What is the correct workflow/tool to edit Pokémon Black (Gen 5) fonts?
- Is there a Gen 5–compatible font editor?
- Or a known method to edit glyph bitmaps + width tables and repack?

Any help from someone who has worked on Gen 5 translations would be appreciated.
 

Edited 2 hours ago by gif12