Drop noisy events - FortiGate firewalls

Hi, we are ingesting FortiGate firewalls into InsightIDR using with existing parser. The log volume is very from the firewalls and we want to suppress the unnecessary or noisy events/logs from ingesting to avoid over usage of our fair data usage limit. Not only firewalls, for any other event sources, how to suppress the events from ingesting.

Please help us to achieve this.