Why Plesk customers and additional Plesk user accounts do not see additional Apache and nginx directives fields at Websites & Domains > example.com > Apache & nginx Settings?
Only Plesk administrator and additional Plesk administrator accounts can manage additional Apache & nginx directives in Plesk.
If you are a domain owner, please contact your service provider for assistance with additional Apache and nginx configuration.
If Proxy mode is enabled at Domains > example.com > Apache & nginx Settings, Plesk customers and additional Plesk user accounts can specify additional Apache directives in the custom
If you would like to see this feature in Plesk, please vote for it on Plesk UserVoice:
The top-ranked suggestions are likely to be included in the next versions of Plesk.