Tips on Customizing VidSEO | WordPress Video SEO embedder with transcripts (Youtube & Vimeo)

How to Hide VidSEO - Video SEO Embedder with Transcription Admin Menus

function plt_hide_vidseo_menus() {
	//Hide "Video SEO".
	remove_menu_page('edit.php?post_type=vidseo');
	//Hide "Video SEO → All Items".
	remove_submenu_page('edit.php?post_type=vidseo', 'edit.php?post_type=vidseo');
	//Hide "Video SEO → Add New Item".
	remove_submenu_page('edit.php?post_type=vidseo', 'post-new.php?post_type=vidseo');
	//Hide "Video SEO → Settings".
	remove_submenu_page('edit.php?post_type=vidseo', 'settings');
	//Hide "Video SEO → Affiliation".
	remove_submenu_page('edit.php?post_type=vidseo', 'settings-affiliation');
	//Hide "Video SEO → Contact Us".
	remove_submenu_page('edit.php?post_type=vidseo', 'settings-contact');
	//Hide "Video SEO → Upgrade".
	remove_submenu_page('edit.php?post_type=vidseo', 'settings-pricing');
}

add_action('admin_menu', 'plt_hide_vidseo_menus', 1000000000);

Where do I put this code?

How to Hide VidSEO - Video SEO Embedder with Transcription Meta Boxes

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

	//Hide the "Video SEO" meta box.
	remove_meta_box('vidseo_post_options', $screen->id, 'normal');
	//Hide the "VIDSEO - Custom settings" meta box.
	remove_meta_box('vidseo_post_sidebar', $screen->id, 'side');
}

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