What is multi-dimensional locking, which FNE supports

With FNP licenses can only be locked to a HOSTID or a system serial number. The locking to the HOSTID is not used anymore.
With FNE it is also possible to lock the licenses e.g. to the upstream of a device, to device categories, the downstream company, … This is meant with multi-dimensional locking.
So it is possible to limit a license to a specific device with FNE.