Tips on Customizing WordPress Online Booking and Scheduling Plugin – Bookly

How to Hide Bookly Admin Menus

function plt_hide_bookly_responsive_appointment_booking_tool_menus() {
	//Hide the "Bookly" menu.
	remove_menu_page('bookly-menu');
	//Hide the "Bookly → Initial setup" menu.
	remove_submenu_page('bookly-menu', 'bookly-setup');
}

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

Where do I put this code?

How to Hide the "Bookly - Appointments" Dashboard Widget

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

	//Remove the "Bookly - Appointments" widget.
	remove_meta_box('bookly-backend-components-dashboard-appointments-widget', 'dashboard', 'normal');
}

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