OpManager Plus IP Address Manager :- High IP Utilization

OpManager Plus IP Address Manager :- High IP Utilization

HI ALL
I have enabled option about IP Utilization via IP Address Manager 
This feature cover all subnets (LAN and WAN)
How i can disable it for WAN subnets ?
I don't want receive notifications of  IP Utilization from all my ISP at routers of branches.

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