Now that I have seen your link, I can offer this little bit -- I hope it is useful.

You can "push" data into Form components using things similar to the following examples:

<INPUT TYPE="TEXT" NAME="FOO" VALUE="<TMPL_VAR NAME="FOOVALUE">">
# Create a Selection list
<SELECT NAME="BARLIST">
<TMPL_LOOP NAME="BARLIST">
  <OPTION VALUE="<TMPL_VAR NAME="VALUE">"><TMPL_VAR NAME="TEXT_VALUE">
</TMPL_LOOP>
</SELECT>
[download]

If you need more information regarding building TMPL_LOOP structures the HTML::Template docs show some good examples, but I will include one that would work for the above loop:

$tmpl->param('BARLIST', [ {'VALUE' => '123', 
                           'TEXT_VALUE' => 'First three' },
                          {'VALUE' => '456',
                           'TEXT_VALUE' => 'Second three'}
                         ]);
[download]