Reply To: Category Select List – 2 Columns

• John Huebner

• April 4, 2016 at 8:20 pm

Add some custom CSS to the admin for that post type and set the LI elements to float left and 50% width.

add_action{'admin_head', 'my_customs_admin_css');
function my_customs_admin_css()  {
  ?>
    <style type="text/css">
      /* "test field name" is the name of the field I used for this */
      div[data-name="test field name"] ul.acf-checkbox-list li {
        float: left;
        width: 50%;
      }
    </style>
  <?php 
}