Hi Edward,

It looks like you're using the standard specimen repository, which is not customizable. If you would like to have additional fields to be added, the repository would need to be switched to being an Advanced repository.

Once this is done, you can update the Specimen repository to hold additional fields, then switch back to a basic repository so your basic spreadsheet template will import.

Alternatively, if you don't want to mess around with that, you could use the Sample Sets option in LabKey as a Specimen Repository instead:

https://www.labkey.org/Documentation/wiki-page.view?name=studySamples

Regards,

Jon