Tips on Customizing Salon Booking System, Appointment Scheduling for Salons, Spas & Small Businesses

How to Hide Salon Booking Wordpress Plugin - Free Version Admin Menus

function plt_hide_salon_booking_system_menus() {
	//Hide "Salon".
	remove_menu_page('salon');
	//Hide "Salon → Calendar".
	remove_submenu_page('salon', 'salon');
	//Hide "Salon → Discounts".
	remove_submenu_page('salon', 'edit.php?post_type=sln_discount');
	//Hide "Salon → Bookings".
	remove_submenu_page('salon', 'edit.php?post_type=sln_booking');
	//Hide "Salon → Services".
	remove_submenu_page('salon', 'edit.php?post_type=sln_service');
	//Hide "Salon → Services Categories".
	remove_submenu_page('salon', 'edit-tags.php?taxonomy=sln_service_category&post_type=sln_service');
	//Hide "Salon → Assistants".
	remove_submenu_page('salon', 'edit.php?post_type=sln_attendant');
	//Hide "Salon → Customers".
	remove_submenu_page('salon', 'salon-customers');
	//Hide "Salon → Reports".
	remove_submenu_page('salon', 'salon-reports');
	//Hide "Salon → Settings".
	remove_submenu_page('salon', 'salon-settings');
	//Hide "Salon → Tools".
	remove_submenu_page('salon', 'salon-tools');
}

add_action('admin_menu', 'plt_hide_salon_booking_system_menus', 1001);

Where do I put this code?

How to Hide Salon Booking Wordpress Plugin - Free Version Meta Boxes

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

	//Hide the "Service Category" meta box.
	remove_meta_box('unique-sln_service_category-div', $screen->id, 'side');
	//Hide the "Service details" meta box.
	remove_meta_box('sln_service-details', $screen->id, 'normal');
	//Hide the "Service description" meta box.
	remove_meta_box('postexcerpt', $screen->id, 'normal');
	//Hide the "Booking details" meta box.
	remove_meta_box('sln_booking-details', $screen->id, 'normal');
	//Hide the "Customer notification" meta box.
	remove_meta_box('sln_booking-notify', $screen->id, 'side');
	//Hide the "Booking Actions" meta box.
	remove_meta_box('sln_booking-actions', $screen->id, 'side');
	//Hide the "Resource details" meta box.
	remove_meta_box('sln_resource-details', $screen->id, 'normal');
}

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