Tips on Customizing Gestion-Pymes

How to Hide Gestion-Pymes Admin Menus

function plt_hide_gestion_pymes_menus() {
	//Hide "Gestion-Pymes".
	remove_menu_page('gestionpymes');

	//Hide "Customers".
	remove_menu_page('edit.php?post_type=gp_customer');
	//Hide "Customers → All Customers".
	remove_submenu_page('edit.php?post_type=gp_customer', 'edit.php?post_type=gp_customer');
	//Hide "Customers → Add New Customer".
	remove_submenu_page('edit.php?post_type=gp_customer', 'post-new.php?post_type=gp_customer');

	//Hide "Invoices".
	remove_menu_page('edit.php?post_type=gp_invoice');
	//Hide "Invoices → All Invoices".
	remove_submenu_page('edit.php?post_type=gp_invoice', 'edit.php?post_type=gp_invoice');
	//Hide "Invoices → Add New Invoice".
	remove_submenu_page('edit.php?post_type=gp_invoice', 'post-new.php?post_type=gp_invoice');
	//Hide "Invoices → Payment status".
	remove_submenu_page('edit.php?post_type=gp_invoice', 'edit-tags.php?taxonomy=gp_invoice_payment_status&post_type=gp_invoice');

	//Hide "Budgets".
	remove_menu_page('edit.php?post_type=gp_budget');
	//Hide "Budgets → All Budgets".
	remove_submenu_page('edit.php?post_type=gp_budget', 'edit.php?post_type=gp_budget');
	//Hide "Budgets → Add New budget".
	remove_submenu_page('edit.php?post_type=gp_budget', 'post-new.php?post_type=gp_budget');
}

add_action('admin_menu', 'plt_hide_gestion_pymes_menus', 41);

Where do I put this code?

How to Hide the "Gestion-Pymes" Dashboard Widget

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

	//Remove the "Gestion-Pymes" widget.
	remove_meta_box('gp_widget_main', 'dashboard', 'normal');
}

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