Do you mean you want to give the IDE command line parameters when you click the run button?
If so, go to the Execute menu, and click Parameters. Then type in something you want to pass as an arg.
E.g. you have a program called program.exe that accepts the arguments hello, goodbye you would type in hello to perform it and goodbye to perform that instead.
Hope that answers your question.
Master of common sense. If you don't like it, stop reading.