I cannot find any information about HOW the new Split/Combine functions work in 4.09beta. When I 7-zip a large file, then open it in the Manager and select Split, I get the message "Operation is not supported". Same for Combine.
Similarly, if I right-click on a large file and select add to archive..., there is no option for splitting in the "Add to Archive" popup form.
When I search for the keyword "Split" in the help system, it gives me "supported formats".
Am I doing something wrong, or is the "split" and "Combine" functionality just empty menu choices at the moment?
1) compress files with 7-zip top archive.7z
2) select archive.7z (not files inside archive) and execute Split.