How can I save a specific configuration to use later without having to configure everything again?
#2 - Or you can copy the queries themselves from the SupermetricsQueries tab. Here's how to get to that:
Make sure that you delete the QueryID for all copies and refresh the query so that it creates a new one. If they are not unique, it can lead to errors in our system.
#3 - Or finally, you can save templates of your work. Click Add-on->Supermetrics->Template Gallery. Scroll to the bottom and see the option to add a custom template.