replacing one layout with another

According to Dynamic UI Modifications of Guides, Configuring Components Webix Docs
one can replace one layout with another but when i try it ( http://webix.com/snippet/7d0248a2 ) it does not work

Any idea why?

In case of accordion, you need to define “view:‘accordionitem’” for the new panel.

http://webix.com/snippet/6ed8d1cf

Thank you Maksim,

I managed to achieve the same result by nesting the forms in another “empty” view with rows.

But will do it the right way asap