do you have a idea why cmk --paths does not show the new path?
OMD[test-site]:~$ cmk --paths
Locally installed addons
Locally installed checks : /omd/sites/test-site/local/share/check_mk/checks/
Locally installed notification scripts : /omd/sites/test-site/local/share/check_mk/notifications/
Locally installed inventory plugins : /omd/sites/test-site/local/share/check_mk/inventory/
Locally installed check man pages : /omd/sites/test-site/local/share/check_mk/checkman/
Locally installed agents and plugins : /omd/sites/test-site/local/share/check_mk/agents/
Locally installed Multisite addons : /omd/sites/test-site/local/share/check_mk/web/
Locally installed PNP templates : /omd/sites/test-site/local/share/check_mk/pnp-templates/
Locally installed documentation : /omd/sites/test-site/local/share/doc/check_mk/
Locally installed localizations : /omd/sites/test-site/local/share/check_mk/locale/