Opening and Saving systems is done through the File menu. The File menu includes common to most Eclipse applications.
To create a new system:
Choose File Ž New… Ž Acme system… from the application menu. You will need to indicate which project the file is to be added to. You may also choose a family that the system should belong to. AcmeStudio is installed with a set of global families. In addition, local families from the project may be instantiated by systems. After selecting OK, a new Acme file will be created with an empty system in it. An Acme source editor and a diagram editor will be created for you.
To open an existing system:
Double-click on the file in the Navigator view.