First, click a LOG button on the control subsystem to open a Log Window. To begin logging, select [Start Log] from [Log] menu on the window. All execution histories will be displayed in the window. The menu item changes into [Stop Log] while the logging. You can stop the logging by clicking [Stop Log].
You can clear all contents of the log window by selecting [Clear Log] from [Log] menu.
In Stand-alone Edition, you can save the contents of the log window by selecting [Save Log...] from [File] menu.