In SmartView Monitor - "System Counters", "Firewall History" and "System History" do not show any data for Virtual Systems
There are counters, which are inherently not different from the perspective of different Virtual Systems or Virtual System 0. For example, CPU usage, RAM usage, Disk usage.
All these counters are for the entire VSX machine, because these are shared resources without a clear definition of which Virtual System used the CPU/RAM/Disk.
The described behavior is part of a deliberate design change, starting in R75.40VS, which was made to reduce memory consumption by the CPD process.