To create a new chart (diagram), a data source and variable must have been created in advance that can be displayed in the chart.
You can find out how to create data sources and variables in the following articles:
Once this has been done, the new chart can be created by clicking on 
“Chart Manager“. Click on the plus button to open the Create chart window.
First select a name for the chart. (In this example “test“.)
Determine the values for the X-axis and confirm with “OK“.
Determine the values for the Y-axis and confirm with “OK“.
Finally, under “Data series” in the “General” tab, select the previously created data source with variable whose values are to be accessed.
In the “Line” tab, you can define further specifications for the chart. Define the “Width“, “Color” and “Type” of the diagram, as well as the size of the points on the data lines (“marker“).
You can also decide whether the area under the lines should be filled in or not. Use the checkbox for this.
You can also set the “time” and “amount” of data for the “live data limit“. The live mode of the chart is the mode in which the chart is updated every second.
Since updating every second would take up considerable resources with large amounts of data, the amount of data for live charts can be limited here.
Once all entries have been made, confirm with “OK” and close the“Chart Manager“, also confirming with “OK“. The chart configuration is now created.
In the “Project settings” under“Data retention“, you can also specify how many days the data should be saved and thus be visible.
“Save” your setting.
To display the data in a chart, select the chart control in the controls and drag and drop it onto the editor workspace.
Then assign the “ChartConfiguration” “Test” created in the “Chart Manager” to the chart in the “Properties“.
