[Rawstudio-users] Settings for Batch export?

[r bartlett]

I've noticed that often, not always, when I open up my photos in Rawstudio the preview bar with the thumbnails at the top looks fantastic -- really beautifully saturated, vivid color, and good contrast.  But I often have to tweak the main image for quite a while to get similar results.  Is there a way to quickly batch-export whatever settings are being used to create those thumbnails?

Or perhaps I could set a few basic defaults in the Batch export so that they're closer to the thumbnails?

Is there a User's Manual or tutorial guide on how to use Rawstudio?  I'm pretty used to .jpg manipulation but not for raw images.  

Thank you!