Loading tabbar on button click

Hello,
Is it possible to load a page in tabbar on button click without showing Tab header.

Here is snippet : http://webix.com/snippet/882abf85 .

So first button should load first page on Tab1 ,
second button should load second page on Tab2.

Or maybe it is better to load an iframe without tabbar like that : http://webix.com/snippet/a0f83999 . ( But then again i get the error )

Can’t figure that out.

http://webix.com/snippet/9f92f3ab