thanks for the answer and i've seen that topic before only not really into powerpivot so i posted question here to search for another option, one question though.. if i setup the slicer using power pivot, can it still working for people using excel 2010 and they dont have power pivot installed?
-- just download file in above link and try to do the slicer and it wont work since my powerpivot data model and his is different, so i think powerpivot must be use only if you have same version installed --
then i think must add another helper column and put top 1 - top 10 then pick that column using slicer