LVS netlist browser remove dummy layer

[MJLIZ]

Dear all, When I use LVS to check netlist connection, the dummy layer always appear in netlist browser. Is it possible to remove dummy layer? I want to only display the real connection and I try to use "blank_circuit", "purge_nets" but it doesn't seems to help. Example layout and lvs code please see as below. Thanks!!

LVS codoe: metal1 = input(1,0) via1 = input(2,0) metal2 = input(3,0)

active_m1 = metal1.interacting(via1) active_m2 = metal2.interacting(via1)

active = active_m1 + active_m2 non_active = (((metal1 + metal2) + via1) - active)

connect(metal1,via1) connect(via1,metal2)

report_netlist

netlist.blank_circuit("non active")