BuddyPress.org

I have been searching all morning but everything I find ends in a different solution or doesn’t tell me where the files are I need to edit. Basically what I want to do is change where my “Login” link goes to. Currently it routes to the default WP login page. I have a custom page located elsewhere in my installation and need to point to the new custom page. Can someone simply tell me where the current file is that contains the “Login” link and how to modify it to a new URL?

Thank you!