copy previews on import

Hello,

is it possible to get the previews copyied when i import a Session or Catalog in another one?

When i import a Session or Catalog in another one, all the picture are importet without the previews.
The previews are then recalculated again, which takes hours again with thousands of images.

Is there a possibility that the already existing previews can simply be imported?

Thanks for your replies

Thomas

I am using Capture One 12.1.4 both on Mac Mojave and Windows 10