Selectize Fulcrum editor visibility & requirement rule select controls

fulcrum-selectize.js

$('head').append('<script src="https://cdnjs.cloudflare.com/ajax/libs/selectize.js/0.13.3/js/standalone/selectize.min.js"></script>');
$('head').append('<link href="https://cdnjs.cloudflare.com/ajax/libs/selectize.js/0.13.3/css/selectize.bootstrap3.min.css" type="text/css" rel="stylesheet" />');
$('.visibility-conditional-modal').on('shown.bs.modal', selectizeIt);
$('.required-conditional-modal').on('shown.bs.modal', selectizeIt);
function selectizeIt() {
  $('.condition-field').selectize({
    sortField: 'text',
    dropdownParent:'body'
  });
  $('.selectize-dropdown').css('z-index', 9999);
  $('.selectize-control').css('display', 'contents');
}