Select an Alerting Process in the left hand pane. An example is shown in the figure below.
In the details pane on the right, click the badge for the alert condition that you want to mark as a false positive. In the example below, we have selected the Presence (PRS) alert bade.
Endpoint Detection and Response with Forensics (EDRF) > Detect and handle potential threats with EDRF > Configure EDRF to detect potential threats > Managing alerts, quarantined files, and false positives