1. Please go to your FTP/CPanel, and go to folder "wp-content/plugins"
2. Create a new file and name it with "bp-custom.php" file. If you already have it, no need to create a new one. Please just open it
3. Put snippet from the link below on the file
https://gist.github.com/KaineLabs/2cc8898e1d6b04a85d8fb30058a0734a
4. You can change Name Tab, Slug, Position, URL etc on that snippet and save the file.