[Patrick]

Thanks for help first.

Can I use "English US" as the Input Language but use "English UK" as
spelling checking in MS Word? How can I achive it?

Or if I use "English UK" as the Input Language, then the default spelling
checking language should be "English UK". In this situation, Can I use the
keymapping as "English US" but the Input Language is "English UK".

Thanks

Patrick