Cocoa: Asian IME doesn't work

• Lazarus/FPC Version: Lazarus 2.3.0 (rev main-2_3-1386-g23b2324f) FPC 3.2.3 x86_64-linux-gtk2
• Operating System: macOS ?.??
• CPU / Bitness: aarch64 / amd64

Asian IME doesn't work in CudaText editor. It uses UTF8KeyPress. I don't want to ask user to install the IDE, sorry.