How to Hide Vimeography Admin Menus

function plt_hide_vimeography_menus() {
	//Hide "Vimeography".
	remove_menu_page('vimeography-edit-galleries');
	//Hide "Vimeography → Edit Galleries".
	remove_submenu_page('vimeography-edit-galleries', 'vimeography-edit-galleries');
	//Hide "Vimeography → New Gallery".
	remove_submenu_page('vimeography-edit-galleries', 'vimeography-new-gallery');
	//Hide "Vimeography → Manage Licenses".
	remove_submenu_page('vimeography-edit-galleries', 'vimeography-manage-activations');
	//Hide "Vimeography → Preview Themes".
	remove_submenu_page('vimeography-edit-galleries', 'http://vimeography.com/themes');
	//Hide "Vimeography → Vimeography Pro".
	remove_submenu_page('vimeography-edit-galleries', 'vimeography-pro');
	//Hide "Vimeography → Help".
	remove_submenu_page('vimeography-edit-galleries', 'vimeography-help');
}

add_action('admin_menu', 'plt_hide_vimeography_menus', 11);
Where do I put this code?