redmine/app/views/projects/settings/_activities.html.erb

<%= form_tag(project_enumerations_path(@project), :method => :put, :class => "tabular") do %>

<table class="list">
  <thead><tr>
    <th><%= l(:field_name) %></th>
    <th><%= l(:enumeration_system_activity) %></th>
    <% TimeEntryActivity.new.available_custom_fields.each do |value| %>
    <th><%= value.name %></th>
    <% end %>
    <th><%= l(:field_active) %></th>
  </tr></thead>

  <% @project.activities(true).each do |enumeration| %>
  <%= fields_for "enumerations[#{enumeration.id}]", enumeration do |ff| %>
  <tr>
    <td class="name">
      <%= ff.hidden_field :parent_id, :value => enumeration.id unless enumeration.project %>
      <%= enumeration %>
    </td>
    <td class="tick"><%= checked_image !enumeration.project %></td>
    <% enumeration.custom_field_values.each do |value| %>
    <td>
      <%= custom_field_tag "enumerations[#{enumeration.id}]", value %>
    </td>
    <% end %>
    <td>
      <%= ff.check_box :active %>
    </td>
  </tr>
  <% end %>
  <% end %>
</table>

<div class="contextual">
<%= link_to(l(:button_reset), project_enumerations_path(@project),
            :method => :delete,
            :data => {:confirm => l(:text_are_you_sure)},
            :class => 'icon icon-del') %>
</div>

<%= submit_tag l(:button_save) %>
<% end %>