Preferences -> Plugins does not exist ??
Having spent a few minutes trying to figure out how to install plugins I have now read the same thing several dozen times, but running calibre 7.46 on OSX there is no Preferences->Plugins, and no plugin icon in the gui. The tutorials are based on a totally different gui so they are of no help at all....
Could someone please point me to current documentation for this app, including specifically details on how to use the gui to add plugins?