Add the below code inside the code snippet plugin or child theme’s functions.php file.
add_filter( 'bp_business_profile_single_settings_tabs', 'custom_settings_tabs');
function custom_settings_tabs( $settings_tabs ) {
/*
Create a custom-settings.php file in the child theme. The file name will be generated using the setting tab slug base.
The file location is as below:
/theme-child-theme name/bp-business-profile/single/settings/custom-settings.php
*/
$settings_tabs['custom-settings'] = 'Custom Settings';
return $settings_tabs;
}
Now you’ll have to create a custom setting file inside The root directory of plugin. The path of the file would be BP Business Profile > template > Single Settings.

Sample File based on the added setting tab is as below:
