File menu options manipulate entire sessions. A session is the status of all data sets and models on the board, including their diary and notes. Only one session can be open at any time.

Open...
Prompts for a filename. A previously saved session can be loaded.
Merge...
Prompts for a filename. A previously saved session can be merged into the current session.
Close
Closes the current session. Deletes all data sets and models, empties the trash, and closes all views.
Save
Saves the session.
Save as...
Prompts for a filename before saving.
1 - 4 session names:
The four latest sessions. Can be opened/merged directly. Initially loaded with examples.
Exit
Closes all figures associated with ident.

Help topics.

(file idfile.htm)