Tips on Customizing PowerPress Podcasting plugin by Blubrry

How to Hide Blubrry PowerPress Admin Menus

function plt_hide_powerpress_menus() {
	//Hide "Settings → PowerPress".
	remove_submenu_page('options-general.php', 'powerpressadmin_basic');

	//Hide "PowerPress".
	remove_menu_page('powerpressadmin_basic');
	//Hide "PowerPress → Settings".
	remove_submenu_page('powerpressadmin_basic', 'powerpressadmin_basic');
	//Hide "PowerPress → Import Podcast".
	remove_submenu_page('powerpressadmin_basic', 'powerpress/powerpressadmin_import_feed.php');
	//Hide "PowerPress → Migrate Media".
	remove_submenu_page('powerpressadmin_basic', 'powerpress/powerpressadmin_migrate.php');
	//Hide "PowerPress → Podcasting SEO".
	remove_submenu_page('powerpressadmin_basic', 'powerpress/powerpressadmin_search.php');
	//Hide "PowerPress → Audio Player".
	remove_submenu_page('powerpressadmin_basic', 'powerpress/powerpressadmin_player.php');
	//Hide "PowerPress → Video Player".
	remove_submenu_page('powerpressadmin_basic', 'powerpress/powerpressadmin_videoplayer.php');
	//Hide "PowerPress → MP3 Tags".
	remove_submenu_page('powerpressadmin_basic', 'powerpress/powerpressadmin_tags.php');
	//Hide "PowerPress → Tools".
	remove_submenu_page('powerpressadmin_basic', 'powerpress/powerpressadmin_tools.php');
}

add_action('admin_menu', 'plt_hide_powerpress_menus', 11);

Where do I put this code?

How to Hide the "Podcast Episode" Meta Box

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

	//Hide the "Podcast Episode" meta box.
	remove_meta_box('powerpress-podcast', $screen->id, 'normal');
}

add_action('add_meta_boxes', 'plt_hide_powerpress_metaboxes', 20);

How to Hide Blubrry PowerPress Dashboard Widgets

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

	//Remove the "Blubrry PowerPress & Community Podcast" widget.
	remove_meta_box('powerpress_dashboard_news', 'dashboard', 'normal');
	//Remove the "Blubrry Podcast Statistics" widget.
	remove_meta_box('powerpress_dashboard_stats', 'dashboard', 'normal');
}

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