I am trying to write a nice plugin for the contest. First, I've started to use the ToolWindow API, but I think it won't look very professional. In this case, I need to open a new Editor when an action is performed. I have studied the Images Viewer plugin, tried to develop something similar, but it doesn't seem to work. Could you please direct me to a tutorial or something to help me doing this? I must say the OpenAPI javadoc didn't help me too much. It would probably be better to improve this. It's just my opinion, though.