This guide is going to show you how to change the scenario from Star System to one of the other pre-loaded scenarios such as Easy Start Earth
Open your services Game Panel and then click on the File Browser button.
From here you will need to browse to the following directory.
File Manager > \Content\CustomWorlds\
Within this directory you will see a list of folders, these are all the current default scenarios for Space Engineers.
Choose which one you want to play, and highlight the name and then copy it with CTRL+C
You now need to go to your Configuration Files and open the SpaceEngineers-Dedicated.cfg in the text editor and scroll to the bottom
Here you will see the line <PremadeCheckpointPath>D:\TCAFiles\Users\Daniel\22026\Content\CustomWorlds\Star System</PremadeCheckpointPath>
Simply Replace the Scenario name “Star System” with the new one you have selected.
<PremadeCheckpointPath>D:\TCAFiles\Users\Daniel\22026\Content\CustomWorlds\Easy Start Earth</PremadeCheckpointPath>
Now save your Configuration File and start your service.
You should now be on your newly selected scenario.