ATOK キー・ローマ字カスタマイザ

ATOK キー・ローマ字カスタマイザ (ATOK Key and Romaji Customizer) is a configuration utility for ATOK, Just Systems' Japanese input method editor (IME) for macOS. It allows users to customize keyboard shortcuts, romanization rules, and input behavior to match their preferred typing style. The utility is designed for Japanese language users who need fine-grained control over how hiragana, katakana, and kanji input behave on their Mac. It is primarily used by Japanese typists, writers, and anyone working regularly with Japanese text who wants to optimize their input workflow.