[xwiki-users] Question : configuration of right access

Hello, I installed the last vesion of XWiki. I choose Panel configuration which allow to have three colomns (few panels on right and left, and in the middle the "main page") Is it possible de allow only the main page PUBLIC (access for guests), and disable VIEW of panels on right and left? I want that guest VIEW only the main page, but not the other panels? I tried all kind of configuations ! I could put main page accessible for GUEST users, but both panels in right and left are visible for GUESTS. Thanks so much. Sincerely yours.