In the left sidebar, click the third icon to open the GraphQL explorer.This will allow you explore the different queries and fields that you can access.
Our playground is equipped with IntelliSense, a handy tool that makes it easier to understand what types of fields you can query. Just press (ctrl + space)!There are a few more keyboard shortcuts that you can use to make your experience more enjoyable.
Prettify Query: Shift-Ctrl-P (or press the prettify button)
Merge Query: Shift-Ctrl-M (or press the merge button)
Run Query: Ctrl-Enter (or press the play button)
Auto Complete: Ctrl-Space (or just start typing)
You can find more information about the Interactive Playground here