Set Display Options Dialog Box Spaces. If you are unsure which options to choose in this dialog box leaving the defaults settings as they are should work well in many cases. Controls options for existing and new layouts.
--common-options are used to set dialog boxes background color title etc. You can access the Options dialog box by opening the Tools menu choosing Options opening the Environment folder and then choosing the General page. The dialog command allows you to display a variety of questions or display messages using dialog boxes from a shell script.
For more information see Character Spacing Options.
Show welcome dialog on startup Select to cause the welcome dialog box to be displayed on startup. A layout is a paper space environment in which you can set up drawings for plotting. Layout of the Options dialog box. Use the dialog utility for creating TTY.