Please separate the Extended Search/Advanced Search in Fieldsetup. It should be possible to have an extended search with less options than the advanced search. E. g. extended search has only searching for is equal and advanced search has user select search.
In addition it would a nice feature if it would be possible to have different permissions for Extended/Advanced search. With this, a normal user can only use the extended search. A manager could search with more options in the advanced search.