Message Marking Through Web

Dear All,

I have upgrade domino from r6.5.5 to r7.0.1. I replaced the desing with dwa7.ntf for each user. my company is having almost 5000 users and all are using web access for email. No use is using Lotus Notes. I want to configure Message Marking through web, this tab is available in Lotus Notes - Preference - message marking but through web it is not available when i open any user database through web access it show only 4 tabs under preference - mail (these are general, display, signature and follow-up)

can anyone pls guide me how can i configure message marking (full circle, half circle and empty) using web access not Lotus Notes?