Look for a config.json file in the mod folder.
Change the key codes for navigation (default 104, 102, 100, 98 for Numpad 8, 6, 4, 2) to your preferred keys. Standard Hotkeys: F5: Open/Close menu. Modest Menu 0.9.8 TKL.rar
External tool (does not inject code into the game memory, making it generally safer/harder to detect). Look for a config
Typically used in pre-configured TKL versions. 98 for Numpad 8