I'm considering using keystroke-recording software to help automate this, but the records are not in sequential order one after another. I wonder if it could be done via an Excel list of the records, for example.
I had also tried creating a temporary blank whse, by first creating a real whse and then deleting the whse code via dfdm but still no luck.
I had also tried exporting the entire im_itemwhse file, re-init it, then import just the valid records but I don't seem to have the ability to populate the other fields in that file (e.g., qtys, cost, etc.) either via import or various other methods, rebuilds, etc., etc.