Hi There,
Sorry for the confusion, but it seems you also misunderstood what Christain said here.
The Agency demo’s News page is blog index page that can not be edited in any Content builder, even on the Wordpress classic editor, This page will be automatically populated by your posts overtime showing from latest to oldest. The same thing is true for Case Studies page because that is a Portfolio index page.
When you imported the Agency Demo you’ll have those pages replicated automatically, please clarify what do you want to be replicated as your site is already base on Agency Demo (minus the Ubermenu). So you should have the same layout of News and Case Study page.
Regarding the License Allowed Usage.
Each license entitles one person, one license, for a single project. In addition, no parts can be shared or repurposed for multiple end users (i.e. blog network or platform allowing users to share theme functionality in whole or part) unless a unique license for each end user is purchased. You can read more on our terms page.
That means if you really need to setup a sub-domain blog site (blog.mydomain.com), then you need to purchase a new license for it, unless that is just a staging site, then you can register it to your current license as staging domain.
Hope this shed some lights,
Cheers!