Tips on Customizing Facebook Instant Articles & Google AMP Pages by PageFrog

How to Hide Facebook Instant Articles & Google AMP Pages by PageFrog Admin Menus

function plt_hide_pagefrog_menus() {
	//Hide "Mobile Formats".
	remove_menu_page('PageFrog-setup');
	//Hide "Mobile Formats → Setup".
	remove_submenu_page('PageFrog-setup', 'PageFrog-setup');
	//Hide "Mobile Formats → Styling".
	remove_submenu_page('PageFrog-setup', 'PageFrog-styling');
	//Hide "Mobile Formats → Analytics".
	remove_submenu_page('PageFrog-setup', 'PageFrog-analytics');
	//Hide "Mobile Formats → Ads".
	remove_submenu_page('PageFrog-setup', 'PageFrog-ads');
	//Hide "Mobile Formats → Settings".
	remove_submenu_page('PageFrog-setup', 'PageFrog-settings');
	//Hide "Mobile Formats → Contact & Help".
	remove_submenu_page('PageFrog-setup', 'PageFrog-help');
}

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

Where do I put this code?

How to Hide the "Mobile Preview" Meta Box

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

	//Hide the "Mobile Preview" meta box.
	remove_meta_box('pagefrog-preview-meta-box', $screen->id, 'side');
}

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