To connect multiple data sources to one report, go to Edit - Manage added data sources. You will find it in the menu of your Data Studio report.
Then, go to ADD A DATA SOURCE.
Now, type "Porter" on the search bar to choose one of our connectors.
As an example, I will use the Facebook Insights connector. Once it's set up, click on Add.
To find the newly added data source go back to Resource - Manage added data sources in the menu.
You'll find the new data source listed. Now you can add as many as you want to your reports so you can track multiple apps' data in a single report.
You can close the tab to continue reporting.