Tips on Customizing Zotpress

How to Hide Zotpress Admin Menus

function plt_hide_zotpress_menus() {
	//Hide "Zotpress".
	remove_menu_page('Zotpress');
	//Hide "Zotpress → Browse".
	remove_submenu_page('Zotpress', 'Zotpress');
	//Hide "Zotpress → Accounts".
	remove_submenu_page('Zotpress', 'admin.php?page=Zotpress&accounts=true');
	//Hide "Zotpress → Options".
	remove_submenu_page('Zotpress', 'admin.php?page=Zotpress&options=true');
	//Hide "Zotpress → Help".
	remove_submenu_page('Zotpress', 'admin.php?page=Zotpress&help=true');
}

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

Where do I put this code?

How to Hide the "Zotpress Reference" Meta Box

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

	//Hide the "Zotpress Reference" meta box.
	remove_meta_box('ZotpressMetaBox', $screen->id, 'side');
}

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