xkb, us keyboard intl variant, sharp s. ß "s

[Mouse]

> key <AC02> { [         s,          S,        ssharp,          section ]};

> I don't know how to type it

I'm guessing here, but my guess is, hold down Mode_Switch and press s.
(To get section - § - hold down Mode_Switch and Shift and press s.)

If you don't have a key with the Mode_Switch KeySym and some modifier
bit on it, you'll need to arrange for one for this to work.

> can somebody tell me how to change the configure file, such that
> typing

> "s gives ß????

Not me; I don't know xkb - in my limited experience, things work better
when I disable it (probably an artifact of which setups I work with).
The above guess is based on core X keyboard mapping, for which the
first four KeySyms have reasonably well-defined interpretation.

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