Vaadin ShortcutKeys on Apple devices

Hi community,

I have a shortcutAction for selecting all rows in a table specified like this:
new ShortcutAction(“Select All”, ShortcutAction.KeyCode.A, + new int { ShortcutAction.ModifierKey.CTRL });
This works perfectly on Windows, but not on Mac. How can I achieve this to work on Apple devices? Does anybody can help?
Thank you.