How to use Option in Intellij Keymaps?

Question

I am trying to add Option-i | u for "Find usages" as shown in this dialog (Note that the "i" is lowercase - shift is not depressed):

But after having selected OK and then going back into Actions we see that the setting did not "take":

Note: I do have custom keymap entries to use Option- for accessing Main Menu items. But why is Option not working in this case? Is there a workaround?

Answer 1

On macOS, "Option" is used for typing special characters, thus when editor is focused and you hit Option-I the shortcut you assigned won't work (it will type a character instead). However, when no editing field is selected, the shortcut should work (e.g. from tool windows).