Tips on Customizing Simple URLs – Link Cloaking, Product Displays, and Affiliate Link Management

How to Hide Lasso Lite Admin Menus

function plt_hide_simple_urls_menus() {
	//Hide "Lasso Lite".
	remove_menu_page('edit.php?post_type=surl');
	//Hide "Lasso Lite → Dashboard".
	remove_submenu_page('edit.php?post_type=surl', 'edit.php?post_type=surl');
	//Hide "Lasso Lite → Import".
	remove_submenu_page('edit.php?post_type=surl', 'surl-import');
	//Hide "Lasso Lite → Settings".
	remove_submenu_page('edit.php?post_type=surl', 'surl-settings-display');
	//Hide "Lasso Lite → Support".
	remove_submenu_page('edit.php?post_type=surl', 'https://support.getlasso.co/');
	//Hide "Lasso Lite → Affiliate+".
	remove_submenu_page('edit.php?post_type=surl', 'https://app.getlasso.co/plus/');
	//Hide "Lasso Lite → Upgrade to Pro".
	remove_submenu_page('edit.php?post_type=surl', 'https://getlasso.co/upgrade/');
}

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

Where do I put this code?

How to Hide the "URL Information" Meta Box

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

	//Hide the "URL Information" meta box.
	remove_meta_box('surl', $screen->id, 'normal');
}

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