generally, this could be a factory report that you can enhance, extend or finetune. Usually what I recommend is to start with finetuning with events received. Many events are received superfluously, for example startup and stopping of services, update result, scan timed out events, etc.
Unless you filter for these, these appear in the reports (mostly because the event severity). You can filter these in ePO server (thus őpertaining toe very report) on in selected reports.
After that you could separate useful (remaining) events into events by VSE modules, such as Access Protection module, BOF module OAS or ODS modules, etc. These can be in one or in separate reports.
Following you could select proper fields for the report, in many cases, for example, Action Taken is recommended to be interrpeted with Event Description, etc. to provide a complete picture.