Site-level preferences that are not allowed to be overridden by WebPreferences and user preferences:
Set FINALPREFERENCES = WIKIWEBMASTER, PREVIEWBGIMAGE
Added:
> >
Plugin Preferences:
Installed TWikiPlugins: To enable/disable plugins, move them between ACTIVEPLUGINS and INACTIVEPLUGINS. Specify a comma separated list of plugin topics; the name of the web must be specified (i.e. TWiki.DefaultPlugin, TWiki.AnOtherPlugin)