Once you have set up a Bionic Connector in Google Data Studio, it will immediately display the list of fields available for you to use.
From here, you may want to start reporting on the data.
Click on the Create Report button (upper right corner).
When prompted, confirm you want to create a report.
If you opted have a report template, it will automatically display a dashboard with commonly requested data.
You can use the controls provided in Bionic to change layout, theme, filters, charts, etc.
Google provides a help link in the upper right corner documenting use of Google Data Studio.
You can also contact Bionic Customer Support (firstname.lastname@example.org or (603) 676-7285 Option 3) for assistance with setting up your particular reporting requirements.