In the course of working with the various libraries in an OpenDDS model, you may find yourself with numerous diagram edit windows open. To make it easy to move back and forth between these windows you can use the Back and Forward buttons on the Eclipse toolbar that are shown below.
If you are making changes in a diagram and activate another diagram, or any other window in your Eclipse session, the model and diagram files will automatically be saved. This is done to avoid conflicts that can occur when changes are made in different diagram editors that refer to the same files.
Note that undo spans file saving so that you can undo changes that were saved if you later decide you did not want to save them.