Tips on Customizing Flexible PDF Invoices for WooCommerce & WordPress

How to Hide Flexible Invoices for WooCommerce and WordPress Admin Menus

function plt_hide_flexible_invoices_menus() {
	//Hide "Invoices".
	remove_menu_page('edit.php?post_type=inspire_invoice');
	//Hide "Invoices → All Invoices".
	remove_submenu_page('edit.php?post_type=inspire_invoice', 'edit.php?post_type=inspire_invoice');
	//Hide "Invoices → Add New Invoice".
	remove_submenu_page('edit.php?post_type=inspire_invoice', 'post-new.php?post_type=inspire_invoice');
	//Hide "Invoices → Reports".
	remove_submenu_page('edit.php?post_type=inspire_invoice', 'flexible-invoices-reports-settings');
	//Hide "Invoices → Download".
	remove_submenu_page('edit.php?post_type=inspire_invoice', 'download');
	//Hide "Invoices → Settings".
	remove_submenu_page('edit.php?post_type=inspire_invoice', 'invoices_settings');
	//Hide "Invoices → Start Here".
	remove_submenu_page('edit.php?post_type=inspire_invoice', 'wpdesk-marketing');
}

add_action('admin_menu', 'plt_hide_flexible_invoices_menus', 1000);

Where do I put this code?

How to Hide the "Grow your business with WP Desk" Dashboard Widget

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

	//Remove the "Grow your business with WP Desk" widget.
	remove_meta_box('flexible-invoices', 'dashboard', 'normal');
}

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