optional arguments in subroutine or using generic procedure

Hi,

I want to write a subroutine with flexible numbers of arguments. One
of the argument 'ID' will decide how many arguments this subroutine
would have. If ID=1, fewer arguments. If ID=2, add many additional
arguments. I am pondering if I have to write two subroutines with
different names and using generic procedure, or I write only one
subroutine with optional arguments declared. Currently, I've chosen
using generic procedure. However, it doesn't seem beneficially enough,
but only with length interface and a generic name only. So why use
generic procedure?
thank you.

Mike.

.

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