Tips on Customizing Gallery by Visual Portfolio

How to Hide Visual Portfolio Admin Menus

function plt_hide_visual_portfolio_menus() {
	//Hide "Visual Portfolio".
	remove_menu_page('edit.php?post_type=portfolio');
	//Hide "Visual Portfolio → Projects".
	remove_submenu_page('edit.php?post_type=portfolio', 'edit.php?post_type=portfolio');
	//Hide "Visual Portfolio → Categories".
	remove_submenu_page('edit.php?post_type=portfolio', 'edit-tags.php?taxonomy=portfolio_category&post_type=portfolio');
	//Hide "Visual Portfolio → Tags".
	remove_submenu_page('edit.php?post_type=portfolio', 'edit-tags.php?taxonomy=portfolio_tag&post_type=portfolio');
	//Hide "Visual Portfolio → Saved Layouts".
	remove_submenu_page('edit.php?post_type=portfolio', 'edit.php?post_type=vp_lists');
	//Hide "Visual Portfolio → Proofing".
	remove_submenu_page('edit.php?post_type=portfolio', 'vpf_proofing_page');
	//Hide "Visual Portfolio → Settings".
	remove_submenu_page('edit.php?post_type=portfolio', 'visual-portfolio-settings');
	//Hide "Visual Portfolio → Documentation".
	remove_submenu_page('edit.php?post_type=portfolio', 'https://www.visualportfolio.com/docs/getting-started/?utm_source=plugin&utm_medium=admin_menu&utm_campaign=docs&utm_content=3.8.0');
	//Hide "Visual Portfolio → Go Pro".
	remove_submenu_page('edit.php?post_type=portfolio', 'https://www.visualportfolio.com/pricing/?utm_source=plugin&utm_medium=admin_menu&utm_campaign=go_pro&utm_content=3.8.0');
}

add_action('admin_menu', 'plt_hide_visual_portfolio_menus', 101);

Where do I put this code?

How to Hide the "Portfolio Activity" Dashboard Widget

function plt_hide_visual_portfolio_dashboard_widgets() {
	$screen = get_current_screen();
	if ( !$screen ) {
		return;
	}

	//Remove the "Portfolio Activity" widget.
	remove_meta_box('vpf_recent_portfolio_activity', 'dashboard', 'normal');
}

add_action('wp_dashboard_setup', 'plt_hide_visual_portfolio_dashboard_widgets', 20);