Command History View
The Command History view displays a list of commands entered at the IDL command line.

You can sort the Command History view by command name or date by clicking the appropriate column header.
To add the Command History view to the current perspective, click Window → Show View → Command History.
You can copy one or more previous commands and paste or drag them to an editor or to the IDL command line. You can also double-click a single command to execute it immediately.
The value controlling the number of lines stored in the Command History view is set on the main IDL preferences page. To change this value:
Toolbar
The toolbar of the Command History view contains the following buttons:
