This is an easy way to import the german templates after the installation.Click on "Add New Template Set":Give the template set a name, set it to "Enabled" (or do it later), choose the correct language (it pulls the corresponding text data from the yaml-files and writes it to the database) and click on "Add Template". Then you have the german template set in osTicket, which normally is installed automatically when you add a language pack during the installation. You can control which language pack is used per department. You set an email address for example with german-support@maildomain.de, create a department which uses this mail address and assign the german template set for this department. When a customer uses this email address, he gets german notifications.When you need additional languages, you can simple add further departments like I described with corresponding mail addresses and templates sets. This is how the multi language template sets are working in osTicket. Greetings from Cologne ;-)