http://www.intellij.net/tracker/idea/viewSCR?publicId=39288 The last time you launched the 2nd instance of IDEA with DevKit, it opened on a default test/demo project. While trying out you plugin in this 2nd instance, you made a few changes to the test project. Next time you'll launch the plugin, you'll face the modifed test/demo project, and not its original version. Sometimes, this is bad. Request: 1/ Add a way to cancel the changes made to the default test/demo project, by overwriting the modified files/classes with copies found in a read-only model project. 2/ Add a way to build the project read-only model from the current test/demo project, as used in the 2nd instance. Motivation:. Each time you launch the plugin to try it out, its better to face the exact same project (data) Note: this could be done with an Ant target, but it would be nicer if it were integrated.