Nis 2009 auto log in memory question

Hi...If I decide to use norton log in and password memory thing...once ive told it not to bug me on a page and offer to memorize sign in...how do I get it to ask me again on that page if I later want it to memorize it?

 

I hope thats clear.  I told it no for good to leave me alone when logging in on a page because blogger and youtube get all mixed up but I want to try it again and now it wont offer to remember my pw login on one of them.

 

Thanks for input