2.11.1 [Contents] command
It displays the first screen of the help.
From this screen The item of the related information such as the operating procedure and reference of JCAD3 jumps and
can read help. To return to the first screen after referring to the help item, it helps. The one of the window It chooses [Contents]
button.
2.11.2 [About JCAD3] command
It displays information about the version and the copyright of JCAD3 and so on.