BuddyPress.org

Here it is, some general idea.

// building navigation tabs
function bpfr_post_profile_setup_nav() {
	global $bp;
	$parent_slug = 'contributions';
	$child_slug = 'posts';	
	
	// main nav
	bp_core_new_nav_item( array(
	'name' => __( 'Contributions' ),
	'slug' => $parent_slug,
	'screen_function' => 'bpfr_profile_post_screen',
	'position' => 40,
	'default_subnav_slug' => $child_slug 
	) );
	
	// Add subnav item 1
	bp_core_new_subnav_item( array( 
	'name' => __( 'My posts' ), 
	'slug' => $child_slug, 
	'parent_url' => $bp->displayed_user->domain . $parent_slug.'/', 
	'parent_slug' => $parent_slug, 
	'screen_function' => 'bpfr_profile_post_screen'
	) );

	// Add subnav item 2
	bp_core_new_subnav_item( array( 
	'name' => __( 'My Pictures' ), 
	'slug' => 'pics', 
	'parent_url' => $bp->displayed_user->domain . $parent_slug.'/', 
	'parent_slug' => $parent_slug, 
	'screen_function' => 'bpfr_profile_picture_screen'
	) );

	// Add subnav item 3
	bp_core_new_subnav_item( array( 
	'name' => __( 'My Videos' ), 
	'slug' => 'vids', 
	'parent_url' => $bp->displayed_user->domain . $parent_slug.'/', 
	'parent_slug' => $parent_slug, 
	'screen_function' => 'bpfr_profile_video_screen'
	) );
}

	// calling templates
	function bpfr_profile_post_screen() {	
		add_action( 'bp_template_content', 'bpfr_profile_post_screen_content' );
		bp_core_load_template( apply_filters( 'bp_core_template_plugin', 'members/single/plugins' ) );
	}

	function bpfr_profile_picture_screen() {
		add_action( 'bp_template_content', 'bpfr_profile_picture_screen_content' );
		bp_core_load_template( apply_filters( 'bp_core_template_plugin', 'members/single/plugins' ) );
	}

	function bpfr_profile_video_screen() {
		add_action( 'bp_template_content', 'bpfr_profile_video_screen_content' );
		bp_core_load_template( apply_filters( 'bp_core_template_plugin', 'members/single/plugins' ) );
	}

	// adding action hooks to template
	function bpfr_profile_post_screen_content() {
		do_action( my_profile_post);
	}

	function bpfr_profile_picture_screen_content() {
		do_action( my_profile_pictures);
	}

	function bpfr_profile_video_screen_content() {
		do_action( my_profile_videos);
	}
add_action( 'bp_setup_nav', 'bpfr_post_profile_setup_nav' );

// fetching content
function bpfr_get_post() {
	
	$myposts = get_posts(  array(
	'posts_per_page' => 6, // set the number of post to show
	'author'         => bp_displayed_user_id(), // show only this member post
	'post_type'      => 'post',
	'orderby'          => 'post_date',
	'order'            => 'DESC',
	'post_status'      => 'publish'
	));
	
	if( ! empty( $myposts ) ) { 
		
		foreach($myposts as $post) {
			setup_postdata( $post );
			$post_object = get_post( $post );			
			
		echo '<div>
		<div class="tab-item-thumbnail" style="float:left;padding-right:5px;"><a href="' . get_permalink($post->ID) . '">' . get_the_post_thumbnail($post->ID, array( 25, 25) ) . '</a></div>
			<div class="tab-item-inner group">
			<p><a href="' . get_permalink($post->ID) . '">' . get_the_title($post->ID) . '</a></p>
			</div>
		</div>';			
		}		
		wp_reset_postdata();

	} else { 		
		echo '<div class="info" id="message">No post.</div>';
	}
}
add_action ( 'my_profile_post', 'bpfr_get_post' );

function bpfr_get_pictures() {

	$myposts = get_posts(  array(
	'posts_per_page' => 6,
	'author'         => bp_displayed_user_id(),
	'post_type'      => 'post', // post_type key
	'orderby'          => 'post_date',
	'order'            => 'DESC',
	'post_status'      => 'publish'
	));
	
	if( ! empty( $myposts ) ) { 
	
	foreach($myposts as $post) {
		setup_postdata( $post );			
	/* here we catch  featured image attached to each post 
	*  using get_the_post_thumbnail()
	*/
	echo '<div class="tab-item-thumbnail" style="float:left;padding-right:5px;"><a href="' . get_permalink($post->ID) . '">' . get_the_post_thumbnail($post->ID, array( 150, 150) ) . '</a></div>';			
	}		
	wp_reset_postdata();

	} else { 		
		echo '<div class="info" id="message">No picture.</div>';
	}
}
add_action ( 'my_profile_pictures', 'bpfr_get_pictures' );

function bpfr_get_videos() {

echo 'Page is empty, add your content !';

}
add_action ( 'my_profile_videos', 'bpfr_get_videos' );