.row
  .col-md-8
    = form_for(@conference, url: admin_conference_volunteers_update_path(@conference.short_title)) do |f|
      = f.submit nil, class: 'btn btn-primary'
      .checkbox
        %label
          = f.check_box :use_volunteers
          Enable Volunteering
      .checkbox
        %label
        = f.check_box :use_vdays
        = dynamic_association :vdays, "Volunteer Days", f
      .col-md-6
        = f.check_box :use_vpositions
        = dynamic_association :vpositions, "Volunteer positions", f