The only FTI properties of notesDatabase exposed to LotusScript are .FTIndexFrequency, .IsFTIndexed, .IsMultiDbSearch and .LastFTIndexed.
The methods, CreateFTIndex(), RemoveFTIndex() and UpdateFTIndex() also exist.
Yet the Notes Client UI shows Count unindexed documents, Size, and the FTI settings for Case sensitivity, index breaks, index attachments and index encrypted fields....
Just as NotesDocument supports dynamic Methods that give access to Items it would be a powerful extension to own classes in LotusScript. It might be implemented similar to the new/delete constructor/destructor as methods with specific names, parameters could be passed as variant array (or new Class called ScriptParameterCollection)