I could export in various formats -- CSV, TSV, XML...
In some cases, I'd have to reformat some of the data to be able to import it. A Simple text "clip separator" as rjbull suggests would then do the job. (Either applied semi-automatically with a regex, in a text editor, or using a common search & replace function, or even by manually pasting the separator in between notes/clips -- this would certainly be quicker than to manually select and copy
BTW, mouser, CH&S is again my Clipboard Manager of choice. I left it behind for a while -- when it couldn't clip images -- and I decided to try it again. I'm impressed. It's a great app that does what it's supposed to do very well and has all the options I need, and more.