If this is your first post, then thank you for using code tags :)

Now, to your problem. Seems like you could use hashes or arrays to store the exceptions:

my %users = {"1" =>"none", "2" => "admin"...};
my %pwds = {"1" =>"admin", "2" => "foobar"...};
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You can either define these in the script or read them in from a file. Then, in your loop, you can

...
my $curpwd = "admin";
if (defined $pwds{$i}) {
  $curpwd = $pwds{$i};
}
if ($users{$i} eq "none") {
  $session->login(Password => $curpwd);
} else {
  $session->login(Name => 'admin', Password => $curpwd);
}
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note that the login method for this module does not require a name, but if you want to skip it, you have to used named parameters.

fnord