Cover photo

Esa característica depende de que el tema sea compatible con la BP Theme Compat API, no de plugins.

Sino prueba con esta función en el functions.php de tu tema:

<?php
function setup_cover_profile_nav(){
    global $bp;
    $profile_link = bp_loggedin_user_domain() . $bp->profile->slug . '/';
    $args = array(
                'name' => 'Profile Cover',
                'slug' => 'change-cover',
                'parent_url' => $profile_link,
                'parent_slug' => $bp->profile->slug,
                'screen_function' => 'screen_change_cover',
                'user_has_access'   => ( bp_is_my_profile() || is_super_admin() ),
                'position' => 40
            );
    bp_core_new_subnav_item($args);
}
add_action( 'bp_setup_nav', 'setup_cover_profile_nav' );

function screen_change_cover(){
    global $bp;
    add_action( 'bp_template_title', 'page_title');
    add_action( 'bp_template_content', 'page_content');
    bp_core_load_template( apply_filters( 'bp_core_template_plugin', 'members/single/plugins' ) );
}

function page_title(){
        echo 'Add/Update Your Profile Cover Image';
}

function page_content(){?>

        <div id="profile-cover-uploader">
        <?php
        rtmedia_uploader();
        ?>
        </div>
        <span class="small-text">**Note: The above uploader will allow you to upload multiple images.  If you select multiple images, a random image will be set as your profile cover.</span>

        <?php
}

function set_featured_after_upload ( $media_id, $file_object, $uploaded ) {
    global $bp;
    if ( $bp->current_action == 'change-cover' ) {
        update_user_meta ( bp_loggedin_user_id(), 'rtmedia_featured_media', $media_id[0] );
    }
}
?>