Greyed out file restore button in host backup on PBS

[shading2490]

I have tried searching the web to no avail.
I am curious as to why the file restore button is greyed out in my PBS web-interface.
It is like this for host, vm and lxc backups.

Best shading

 

[JensF]

You can't do a file restore on the PBS. You have to do this on the PVE.