Thank you so much. I think I understand its usage. Also, regarding the "ifargument" command you mentioned, is it counting from 0 and then checking the arguments one by one? Because I only learned "iffirstargument", "ifsecondargument" from the wiki. Perhaps we should update the section on the wiki on defining optional parameters. ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki!
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