Currently in Windchill 10.2, performing copy/paste operations out of the Validation step of Import from Spreadsheet results in not all of the information being pasted correctly. For our users, who frequently run into errors and find they need to provided these errors to our business support team for assistance, this can be frustrating, especially when errors scroll off the screen and many print screen operations are required to get around this issue.
I logged a support call (12336037) and was told this is due to the combined JavaScript/Ajax coding is the reason why copy/paste doesn't work.
I see two options -
1) Re-code the page to permit copy/paste.
2) Add a simple "Export" or "Copy to clipboard" button to permit these errors to be communicated.