defining fiels to be returned when using mlt

[Stefan Rinner]

Hi

Is there any way to define the numer/type of fields of the documents  
returned in the "moreLikeThis" part of the response, when "mlt" is  
set to true?

Currently I'm using morelikethis to show the number and sources of  
similar documents - therefore I'd need only the "source" field of  
these similar documents and not everything.

- stefan