my $render_structure = [
  {  wrapper => 'abc', render_list => ['foo', bar' ] },
  {  wrapper => 'cba',
     class => ['abc', 'cde' ],
     render_list => [
      'foo2',
      { wrapper => 'abc', render_list => ['fld1', 'fld2'] }
     ],
   }
];

What about blocks of text? Chunks of html like help or hints...