Itimpi wanted an NZB filter so, autoloaded NZB's could be filtered down and all the samples, SFVs, NFO's and other crap file could be removed before the files were moved to the download list.
In the NZB options, you can pick a filter profile. The subject filters will apply to the loading of the NZB's and the filename filters will apply after download.
This'll be in the next beta.