Within AppCMS in the top navigation, click SETTINGS on the left navigation menu and then the chevron to expand the GEO RESTRICT section.
Here you can add restrictions for content depending on platform and country.
On the left side, clicking on the box will allow you to select platforms, for example, Web or iOS or Roku.
On the right side, clicking on the box will allow you to select countries by their initials, for example AR for Argentina, US for USA.