How to assign links to page buttons…

Using WP for a year you should know the drill:
click Extend on the top of this page, then Plugins and do a search… for example search “page redirect” – since this is what you want.
When did you try it last time?

I did not explain myself well.
I used the word redirect incorrectly.

I just need to know how to change the URL on the navigations buttons.

I have been registered for a year, but haven’t been completely active.
Yes, I have tried many searches, like “page redirect”, “link”, “change link”, and so on. I know how to do that, however, I posted this because I still haven’t found the answer.

This is what you asked:

I just need to create a “page” that will just redirect me to a phpbb forum within the site, not the “page” itself…

And if you follow what I wrote (i.e. going to the Plugins section and search for “page redirect”) you get the EasyRedirect plugin as a top hit for your search.
Download, install, activate – use it. It does exactly what you were asking.

Nobody can see your “navigation buttons” – so never ask display/design questions without a link.