R how to create a tabulated layout in slidify

Question

I fail to create tabs in my slidify slide like in an io2012 example using the following code

---
title: Slidify Test
author: Novice
widgets: [mathjax, bootstrap, quiz]
--- {class: class, tpl: tabs}

This is to test if the tab template works correctly

*** {class: active, id: problem}

Tab1

*** {id: questions}

Tab2

As were advised in an earlier question I've copied the tabs.html to the assets/layouts folder (the same as in io2012), but still don't see tabs. What is missing? The same experiment with twocols layout worked out.

Another related question - if I choose not to use tabs, how can I create links (transitions) between different slides (for example, to create table of contents)?

Answer 1

It seems that now tabs is a dev feature, so to make it work use a dev version (like in another question)

install_github("slidify", "ramnathv", ref="dev")
install_github("slidifyLibraries", "ramnathv", ref="dev")

Still wondering how to refer from one slide to another..