I suggest non-English language text input method shortcut key must be prioritized than Outlook shortcut key.
Non-English language text input method needs shortcut key to transform the characters like Kanji, Chinese character, etc.
But Outlook and some Office application force to assign each application's shortcut and they disable text input method shortcut.
This is really headache.
Please give us shortcut key assignment settings in all office applications or leave the priority to text input method shortcut.