I'm sorry, but the knowledge sources do not contain any information about disabling the Ctrl+Z (Undo) shortcut in the Airbyte Connector Builder. The June 2024 release notes confirm that Undo/Redo functionality (including Ctrl+Z/Cmd+Z) was added to the Connector Builder, but there is no mention of an option to disable or customize these shortcuts. If this feature is causing issues, you may want to provide feedback to the Airbyte team or open a feature request for more control over keyboard shortcuts in the Connector Builder interface [June 2024 Release Notes](
https://docs.airbyte.com/release_notes/june_2024).