Policy
Display Developer tab in the Ribbon
This policy setting controls whether the Developer tab will be displayed in the Ribbon. If you enable this policy setting, the Developer tab will be displayed in the Ribbon. If you disable this policy setting, the Developer tab will not be displayed in the Ribbon. If you do not configure this policy setting, the Developer tab will not be displayed in the Ribbon, but its visibility can be changed via a setting in the application Options dialog box.
6059ae3e069d L_DisplayDeveloperTab Registry
Copy registry mappings
HKCU\software\policies\microsoft\office\16.0\publisher\preferences\developertools (enabled) = 1
HKCU\software\policies\microsoft\office\16.0\publisher\preferences\developertools (disabled) = 0 Policy notes
This policy setting controls whether the Developer tab will be displayed in the Ribbon. If you enable this policy setting, the Developer tab will be displayed in the Ribbon. If you disable this policy setting, the Developer tab will not be displayed in the Ribbon. If you do not configure this policy setting, the Developer tab will not be displayed in the Ribbon, but its visibility can be changed via a setting in the application Options dialog box.