Is there any way to create Optimazible VFP local view. Current definition of the view is:

CREATE SQL VIEW HonVed AS SELECT Hon.*, Homo.Ime;
                FROM  honorar!hon  LEFT OUTER JOIN honorar!homo    ON  Hon.egn = Homo.egn+;
                WHERE Hon.dataved = ?getdataved+;                  && Date field
                AND IIF(hon_ved1,Hon.lev1==?get_lev1,.T.) = .T.+;  && Integer field
                AND IIF(hon_ved2,Hon.lev2==?get_lev2,.T.) = .T.+;  && Integer field
                AND IIF(hon_ved3,Hon.lev3==?get_lev3,.T.) = .T.    && Integer field

I want this view to be optimazible
User can change values of the hon_ved1,2,3
How to Index Hon when some fields (Lev1, Lev2, Lev3) can contains Data # 0 but not take part in the view?
i.e. Lev1 can contains Data # 0 but hov_ved1 can be .F. etc. so I can't index my Table (hon) on
INDEX ON DTOS(DataVed)+STR(Lev1)+STR(Lev2)+STR(Lev3).
Is there another way to make this View optimazable instead each time the user change values of hon_ved1,2,3 I regenerate the View?

TIA