And the supplied free scenes are in a weird spot:

Look in the Presets folder , so where-ever you have installed B7 look for ..PresetsScene files *.br7
 and these are the names of the files:

Free content cloud over big sur 1.br7
Free content Lincolnshire wind turbines 1.br7
Free content millstone simplified 1.br7
Free content R4 1.br7
Free content scene to go with video tutorial modifying volumetric cloud materials 1.br7

I shifted mine over to the more logical Content folder with other scene files...
 

RosemaryR
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"This...this is magnificent!"
"Oh, yeah. Ooooo. Aaaaah. That's how it starts.
Then, later, there's ...running. And....screaming."