When using Rumba without a 'foreign' (non-english) keyboard sometimes you need to know how to type a certain foreign character without having to change or create a keyboard.map file.  How do you do this?

All the different foreign letter types are available with the keystroke ALT nnn where nnn represents the 3 digits that creates the character by holding the ALT key down.

There are numerous websties available where you can find these key combinations but here is one of them that seems to be particularly useful:

http://ml.hss.cmu.edu/mlrc/links/keyboardhelp.html