Currently, when opening a command window with the System Exec function, the "wait until completion?" option performs two operations. It causes the VI to wait until the command is completed, and it suppresses the output in the command window. The output becomes available on the standard output terminal after the command has completed. This causes problems if you need to see what is happening in the command window, and you need the VI to wait until the command has completed.
It would add more functionality if these options were separate. One option, "suppress output?", would suppress the output in the command window and put the output on the standard output terminal. The second option, "wait until completion?", would make the VI wait until the command has completed.
