Documentation: This button, which has a book icon, will open a third panel on the right. It will show the built-in documentation — not the documentation you're reading now. It will reveal the embedded documentation relevant to whatever query, mutation, datatype, or field you've clicked on. It contains very brief and succinct documentation for quick reminders of how to enter funtions and data.

History: This will show the history of all previous queries and mutations you executed within the API Explorer. Clicking on it will open a panel on the left that lists all them so that you can re-run them or copy them.

Re-Fetch GQL Schema: The GraphQL API Explorer operates in accordance with an underlying copy of the scheme.graphql file. When you type in a query or mutation, you're prompted with auto-completion choices. It uses the schema file for ensuring compliance with the syntax, and it gives you choices for enumerated datatypes.

When using LogScale on a self-hosted installation, you may need to refresh the schema file to be able to access the latest functions and parameters. You would do this by clicking on the pair of circular arrows icon. This isn't generally necessary on CrowdStrike cloud hosted instances, but may be used to get the latest changes for the day.

Short-Keys: This button merely displays a box listing the shortcut key combinations available.

Settings: There are a couple of settings that can be made in the dialog that appears when you click this button (i.e., the cog icon). One will clear all the locally stored data.