Welcome to our community, hermi14
One fairly simple way to accomplish this is to use a redirect
topic. This is a topic that has a single function. To redirect to a
different topic. Because the topic is actually part of your
project, you should have no issues linking to it in the Related
Topics control. You then simply configure the redirect to point at
the desired external topic.
Here is the code you add (using the HTML view or "TrueCode")
<meta HTTP-EQUIV=refresh CONTENT="0;URL=SomeFile.htm">
Change the code above to your specifics. CONTENT="0
represents the delay in seconds before the page is redirected to
the page, URL or file name specified in URL=. We usually want the
redirection process to happen immediately with no delay. If the
desired destination is Boffo.htm, replace SomeFile.htm with
Boffo.htm. If the desired destination is SomeFile.DOC, replace
SomeFile.htm with SomeFile.DOC.
Hopefully this helps... Rick