Tips on Customizing AI Content X: GPT-3 Content Generator

How to Hide AI Content X: GPT-3 Content Generator Admin Menus

function plt_hide_ai_content_x_menus() {
	//Hide "AI Content X".
	remove_menu_page('ai-content-x');
	//Hide "AI Content X → Settings".
	remove_submenu_page('ai-content-x', 'ai-content-x');
	//Hide "AI Content X → OpenAI Settings".
	remove_submenu_page('ai-content-x', 'ai-content-x-openai-settings');
	//Hide "AI Content X → Queue & Logs".
	remove_submenu_page('ai-content-x', 'ai-content-x-logs');
	//Hide "AI Content X → Prompts PRO".
	remove_submenu_page('ai-content-x', 'https://jodacame.dev/ai-content-x/free-vs-pro');
	//Hide "AI Content X → Upgrade Pro".
	remove_submenu_page('ai-content-x', 'https://jodacame.dev/ai-content-x/free-vs-pro');
}

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

Where do I put this code?

How to Hide the "AI Content X" Meta Box

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

	//Hide the "AI Content X" meta box.
	remove_meta_box('ai_content_x_sectionid', $screen->id, 'side');
}

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