AI uses a fixed keyboard mapping and some keys just remain unusable in foreign languages... It's been forever this way and there's nothing you can do about it. It's realyl the pest and Adobe doesn't seem to care to fix it...
I had my hopes up after reading this:
Illustrator supports Unicode, a standard that assigns a unique number to every single character, no matter which language or type of computer you use.
But I guess that is just for adding text, and not for quick keys.
What a pain
No problem using the tilde key (above the circumflex) on Windows with a Japanese keyboard using AI CS6. Must be a Mac thing...
Do you have to use shift to get your tilde? I assume the circumflex key = ^
It might be the Mac keyboard I guess.
Hopefully a Mac user has some knowledge. Unless Mylenium is right, and it just doesn't work on a Mac.