current import is great but seems to be limited to card count and card name?

the export feature can dump a bunch of good info, like editon, condition, language, count, etc.

it would be great to be able to export one inventory and import it into another without having to correct edition, language, etc that was mass applied from basic import.

or is this already possible?

The site lets you import CSV files with all headers. Export you collection, and then look at the first line. It will have all of the appropriate column headers.

Some folks have run into some hiccoughs along the way, so I recommend searching for other threads on importing. You'll likely find some good tips to help you avoid trouble.

I don't import much, so I'm of little help in that regard. ;-)