To save a diagram you must first draw it, calculate it, enter patient name, patient #, patient age, and user initials. The [Save] button becomes active after a diagram is calculated, but SAGE II will not save a diagram without these required field entries.

By default the SAGE II program saves diagrams as *.sg4 files. For new files the default file name will be constructed from the patient ID field entry. For example, if you enter '12345678' as the patient's ID, then the default file name for storing will be '12345678.sg4'. (SAGE II does not require strict adherence to this naming protocol and will open any named file, as long as the file was created using SAGE IIc.)

Once a diagram image is saved to a SAGE II file, the image cannot be altered. You can add new images to the same patient file by either cloning an existing image, or starting with a blank diagram.

To add a new diagram to an existing SAGE II file, click the [Change] button and select either "clone the selected image" or "create a blank diagram". Cloning an existing image brings forward all the data from that image into a new diagram. This new diagram can then be edited as if it were just created, and then saved with the previous diagrams.