That’s good to know and I would have given more instructions would I have known that earlier.
In order to use the File Device you need to create one in the PLC configuration first.
So under File devices in the PLC configuration create a new file device with some name but that same name is used under the Scene Viewer/File device in the ObjectHierarchy.
Now the path is a bit different depending if you are using AS4 or AS6. In AS4 you can enter a path like you did in your screenshot because C:\ is your laptops hard drive.
In AS6 that’s no longer possible since ARsim is contained to the Simulation folder and C:\ would be the same system partition you would find on a real system.
USER_PATH in this example, always points to the User Partition regardless if you are using ARsim or a real target. Again slightly different between AS4 and AS6 but I would recommend using USER_PATH which would then create the scene under your project folder structure. In my example that would be (if you stick with USER_PATH it’s the same in AS4)
You can also use the default USER file device, in that case just use USER as your file devcie name under the ObjectHierarchy.
It’s also explained in the current Getting Started for MpPick
I hope this helps and doesn’t create even more confusion. You certainly picked a topic to start you B&R career that can get pretty complex pretty quick.