Tips on Customizing AP Writer

How to Hide AP Writer Admin Menus

function plt_hide_ap_writer_menus() {
	//Hide "AP Writer".
	remove_menu_page('ap-writer');
	//Hide "AP Writer → Generate article".
	remove_submenu_page('ap-writer', 'ap-writer');
	//Hide "AP Writer → Auto-generation schedule".
	remove_submenu_page('ap-writer', 'ap-writer-schedule');
	//Hide "AP Writer → Articles".
	remove_submenu_page('ap-writer', 'ap-writer-list');
	//Hide "AP Writer → Settings".
	remove_submenu_page('ap-writer', 'ap-writer-settings');
	//Hide "AP Writer → Refer a friend".
	remove_submenu_page('ap-writer', 'ap-writer-referral');
}

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

Where do I put this code?

How to Hide the "AP Writer Table of Contents" Meta Box

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

	//Hide the "AP Writer Table of Contents" meta box.
	remove_meta_box('apwriter_toc_box', $screen->id, 'side');
}

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