SUMMARY No entry for the 'Calendars' tab under 'Settings'->'Configure KOrganizer'->'General' in https://docs.kde.org/stable5/en/korganizer/korganizer/config.html#config-main-general STEPS TO REPRODUCE OBSERVED RESULT EXPECTED RESULT SOFTWARE/OS VERSIONS Windows: macOS: Linux/KDE Plasma: (available in About System) KDE Plasma Version: KDE Frameworks Version: Qt Version: ADDITIONAL INFORMATION
If you look at the handbook index page for KOrganizer, it was last updated in 2016, and there is far more outdated than just missing that one tab. The whole layout of Views and Tabs in the Settings dialog seems to have changed a great deal. A major rewrite is probably needed.