Robot Handling Some keys do not work

Hi.
There some keys that I have not been able to use in the Robot Handling step.
Keys generating invalid: '`" and to type ?, it would require combined keys “Shift+/”.
On a International - US Keyboard setup, I would need those keys to type Spanish character sets like áéíóúñ.

Is there a way to used Char(xx) or similar?
Thanks