Replacement Message for "warning-sites" cannot be changed

Hi!

I am just trying to custimize the Replacement Messages of my FG200E. I modified "FortiGuard Block Page" which shoud - if I am right - affect:

- Warning messages for blocked sites (Fortiguard)

- Warning messages for "warning" sites (Fortiguard)

- Warning messages for "authenticate" sites (Fortiguard)

Now, after modifying the message, the message for blocked sites has changed, but the message for "warning"-sites is still:

"You have tried to access a web page which is in violation of your internet usage policy."

Can you give me a hint on how to change the text of the page for sites with the option "proceed"?

Thank you!

KPS