[TYPO3] Layout and language labels for Indexed search

[tapio]

> I believe that this is the format for TS properties of a plugin
> _regardless_ of whether or not there are underscores in the extension
> key. So I'm fairly sure it's always
> 
> plugin.tx_foobar_pi1
> 
> ...whether the extension key is 'foo_bar' or 'foobar'.

No underscore and underscore - they have always been for me confusing.
Thanks Christopher. That worked.

Endeed I didn't get solved how to redefine the layout.
The manual of indexed search doesn't handle at all layout issues.