Activate NTFS Hard Link for File Backup

I’m new with UrBackup but the first steps are very promising and it seems that this is exactly what I am searching for.

However I am not sure about the configuration.
I want to use the NTFS hardlink feature to deduplicate data backup files.
Is this feature enabled automatically when a NTFS disk is used?
I noticed that under “Settings” “General” “Advanced” there is a setting regarding symbolic links. It was activated on default. Do I have to disable this to enable NTFS hard links?