How to decide on adding context data?
The option "Use Geo-coordination Service" is basically importing the context data online. If you already have the files downloaded you can choose the option "Import from Local files".
The common workflow is for the context data to be downloaded from Geo-Coordination Service. You will need internet connection for this. The data downloaded from the Geo-Coordination Services can be found in the Geo-Coordination Services download path defined in the "Backstage > Settings > Geo-Coordination Services" section. It is recommended to keep a copy of this data for future use.