Special character 

Hello,
first of all - thanks for making nudelta. 

I am about to buy a nuphy air75.
I wonder if it is possible nutelda to send custom characters? Example:

Fn+s = ß
Fn+o = ö
etc

Edit: If that is not possible - is it possible to send AltGr+p or AltGr+s? With the right layout this would create the special characters.

Best regards,
Qua