How to use Advanced settings in Looker Studio with Coupler.io connector?
Users can use Advanced settings during Looker Studio destination setup in order to save time and better visualize the data.
Available Advanced Settings
Note: you can define Advanced settings after you run importer successfully at least 1 time.
How to setup advanced settings
- After the importer successfully finished click the 'Edit' button
2. Click the 'Edit' button on the 'Destination
3. Click the 'Change' button on the 'Advanced settings'.
4. Proceed with settings update.
Report / data source URL
- If you leave this field empty - when you click "Generate Data Source" / "View results" - new Looker Studio report will be created.
- If you want to link your importer with specific Looker Studio report - copy it's report or data source URL and paste to the 'Report / data source URL' field:
Once you define the value - by click on "Generate Data Source" button on importer edit page, you will be redirected to the specified link: 
Same for "View results" button - after the next run you can click on the button 'View Results' on the importer page and you'll be automatically redirected to the report.
Fields grouping
You can also enable 'Fields grouping' to group columns using the [GroupName]: [Field Name] pattern. To do it just simply enable 'Fields grouping' toggle 
With this setting enabled - fields will be grouped by the pattern: