Restrict All webpages except a few ones

Up to now, I have been only using the Internet Explorer Parental Control.

 

I had configured it in a way that my children could only access the pages that I had previously allowed in a list, but any other that was not included in that list remained blocked.

 

Is it possible to configure this negative filter with de Norton Online Family? ( all webs disabled, except the ones I allow in a list).

 

Thanks.

 

Fernando Martinez

Valladolid - Spain