[@edgarverona Member 14 years ago]

Would this work as a workaround for you?

http://shabushabu.eu/reordering-buddypress-group-tabs/

I found it after doing some searching… it doesn’t inject the forum into the “home” tab itself, but it would let you rearrange everything so Forums come up first (and make “home” not even appear at all if you want from what it looks like).