Add a PLT command to the command list.
XSPEC> setplot command <PLT_command>
where PLT_command is any valid PLT command. Every time you use setplot command, that command is added to the list that is passed to PLT when you use plot or iplot. The most common use of setplot command is to add a common label to all plots produced. You should be careful when using this command, because XSPEC does not check to see if you have entered a valid PLT command. These commands are appended to the list that XSPEC creates to generate the plot and so setplot command will override these values (this can either be a bug or a feature, depending on what you have done!)
See also setplot delete and setplot list.