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Is there any work around to navigate to see earlier portion of command window?
in addition to the scroll bar and doc browser, you can turn on the "pager" function which will paginate long text output like help text. You can turn this feature on and off using
more on
And
more off
You should see navigation prompts at the bottom for "(f)orward (b)ack (q)uit"
also, be warned that I believe there were issues in older versions of Octave on windows with noticeable delays in output using the pager, although I don't think that has been reported in some time.