Forum ID different on portal1.php and portal2.php?

[nier3]

Hi, I have "two portal" pages, but there are the same posts/announcements in both portals page.

I would like to know how can I setting Forum ID in each portal page.

For example:

In portal1.php only portal_announcements from Forum ID 1 and 2;
In portal2.php only portal_announcements from Forum ID 3 and 4.

Thank you very much in advance for help!