openproject/app/views/projects/form/_custom_fields.html.erb

<fieldset class="box" id="project_issue_custom_fields">
  <legend>
    <%=l(:label_custom_field_plural)%>
    <span style="font-size:0.9em">
      (<%= check_all_links 'project_issue_custom_fields' %>)
    </span>
  </legend>
  <% issue_custom_fields.each do |custom_field| %>
    <label class="floating">
      <%= check_box_tag 'project[work_package_custom_field_ids][]',
                        custom_field.id,
                        @project.all_work_package_custom_fields.include?(custom_field),
                        custom_field.is_for_all? ? {:disabled => "disabled"} : {} %>
      <%= h(custom_field.name) %>
    </label>
  <% end %>
  <%= hidden_field_tag 'project[work_package_custom_field_ids][]', '' %>
</fieldset>