I have a working Eclipse Plugin that I should rewrite as an IntelliJ Plugin. Its basically an MultiPagedEditor consisting of Frames. On my first try created an Action that starts a Thread and draws a Frame with a TabbedPane containing all the Frames I need. It kind of works but is probably the wrong way to do it and has some serious Problems. For Instance I cant use the Messages class because I use another Thread. What is the right way to do this?