How to always allow active content for a specific URL?

When I call a specific URL in either the format
http://.....
or D:\work\proj\index.html
then at the upper border of the IntExp window a yellow bar appears informing me that
active content embedded in this page is blocked. Ok I can "click here for option..."
and allow it temporarily. But how can I PERMANENTLY allow active content
but ONLY for this URL pattern. Read: With wildcards

D:\work\proj\*.*

should allow active content as well for

D:\work\proj\sub\test\test.html

Similarly for certain http:// addresses a permission should be createable

Theo