epri-vtn_custom/app/views/accounts/_admin_account_control.html.erb

<%= form_for(record, url: accounts_admin_path(record)) do |f| %>
  <fieldset>
    <h3 class="fieldset-heading">Administrator Settings</h3>

    <div class="checkbox">
      <%= f.label Account.fields[:is_admin].display_name, Account.fields[:is_admin].display_name do %>
        <%= Account.fields[:is_admin].generate_field f, record %>
        Administrator
      <% end %>
    </div>

    <%= f.submit "Update Admin Settings", class: 'btn btn-primary' %>
  </fieldset>
<% end %>