Hi @idiedrich,
Greetings and Welcome to the support forum.
To customize the related link template please copy your file from src/package/views/link-templates/link-template-panel.php
to the …attire/download-manager/link-templates
directory.
You will find more details regarding this on our documentation page: https://www.wpdownloadmanager.com/doc/template-files/.
Let me know if you still have any queries regarding this.
Regards