I believe you are requesting more countries in our Binding to GeoJSON example.
The GeoJSON in the demo is used to just show how to bind the GeoJSON data to the Kendo Map.
We have a section in our documentation which will guide you to where and how you can create a map from scratch using free, available datasets.
We suggest a few places where you can get data like the Natural Earth project.
Hope this helps steer you in the right direction.
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