BuddyPress.org

hi, when people click the group links, i would like to make it start with forum.

the direct modification on the buddypress code is an easy way, but the link will still be:
http://www.example.com/group/abc/forum
http://www.example.com/group/abc/ will still point to the activity page.

Is it possible to replace this link directly
http://www.example.com/group/abc/forum
with
http://www.example.com/group/abc/ ?

Thanks a lot!