[turba] minisearch on the portal page

[Juergen Kofler]

hi,
is there a possibility to search on other fields than the name in the
mini-search on the portal page?
for example on company or category?

I've tried to change the "search array" of the turba/config/sources.php
but that doesn't affect the minisearch on the portal page , but only the
normal search...
the addressbok is a localsql.

Thanks for your help
~Juergen Kofler