Minor Description
In admin > site settings, there is still a panel "page parameters" in which you can select a page and change the applied template.
As the change of template on a page is no more recommended (it creates in fact a new page, and not only a template change) is this panel still necessary in your opinion ?
For me it's more confusing than usefull, it lets think than you can achieve an interesting operation, which is no longer the case in jahia 6