You don't want to do anything in our configuration and just create a Swedish Language pack as per our guidelines in
yendif.com/joomla/events/language-packs.html and upload it to your site using the standard Joomla installer. Now, when you switch from English to Swedish or to any other language, Joomla will automatically read language files related to the selected language and also you will get the Events in the same language the site uses.
And, when you create Categories, Booking fields or Venues, You must select the language the current item belongs to using the 'Select Language' list box available in the form you're working in.