I am trying to create a report that will tell me how much WAN usage my fortigates have at remote sites, in Fortianalyzer there is Throughput billing report that is supposed to let me select the interface on the remote fortigate I am running the report against, however, the section where you do that says "interface selection not supported", I have enabled via CLI with no success by doing:
config system log interface-stats
set billing-report enable
end
