Hi Bruno,

I believe that the best way to generate this report is using the Dashboard app. Please find below the steps that should cover your use case:

• Create a dashboard that contains the component Line Chart. See DataMiner Help (Line & area chart) for additional information about charts
• In the new dashboard, as data source, select Parameters. In the filter options select:
  • From: Protocol
  • Protocol: The name of the protocol
    In the example below, I added the parameter Total Processor Load from the connector Microsoft Platform:

    

  • Add this selection to the line chart component
• For filtering select Elements. In this case add to the line chart component the elements that will be included in your report
• Select the component and go to Settings:
  • If required, change the timespan according to your requirements
  • In the option 'Group by', select the option 'All together'. This will display all the lines in the same chart:

    

• Finally, generate the report based on the dashboard. You can find in DataMiner Help - Generating a report based on a dashboard additional information about how to generate this report