anchor.diff:      <div class="pa-planning--header--control pa-planning--header--control-zoom">
         <%= t('shared.planning.displayed_period') %>
         <div class="dropdown">
  -        <a data-target="#" href="#" data-toggle="dropdown" class="dropdown-toggle"><span><%= @planning_default_zoom %> <%= t('concepts.months') %></span> <b class="caret"></b></a>
  +        <a data-target="#" href="#" data-toggle="dropdown" class="dropdown-toggle"><span><%= @planning_view_default_zoom %> <%= t('concepts.months') %></span> <b class="caret"></b></a>
           <ul class="dropdown-menu scrollable-list">
  -          <% @planning_available_zoom.each do |nb_of_months, percent| %>
  -            <li<%= ' class="active"'.html_safe if @planning_default_zoom == nb_of_months %>>
  +          <% @planning_view_available_zoom.each do |nb_of_months, percent| %>
  +            <li<%= ' class="active"'.html_safe if @planning_view_default_zoom == nb_of_months %>>
                 <a href="#" class="pa-planning--ctrl-move-zoom" data-nb-of-months="<%= nb_of_months %>" data-zoom="<%= percent %>"><%= nb_of_months %> <%= t('concepts.months') %></a>
               </li>
             <% end %>
  
positive.code: 
             @collection.each do |row|
  
               if @planning_group_by != :none && prev_group_by_id != row.send(@planning_group_by).id
        %>
              <div class="pa-planning--row pa-planning--row-head">
                <%= row.send(@planning_group_by) %>
              </div>
            <%
               end
            %>
  
            <%= content_tag :div, class: "pa-planning--row #{'pa-planning--row-expandable' if @planning_expandable}", data: @planning_data_attributes.each_with_object(Hash.new(0)) { |attr, h| h[attr[0]] = row.send(attr[1]) } do %>
  
              <div class="pa-planning--row-container">
                <div class="pa-planning--row-wrapper">
                  <%
                     prev_timeslot_start_date = nil
                     prev_timeslot_end_date = nil
                     @planning_timeslots.each_with_index do |timeslot, timeslot_index|
                       timeslot_start_date = row.send(timeslot[:start_attribute])
                       timeslot_end_date = row.send(timeslot[:end_attribute]) || @planning_end_date
  
                       if prev_timeslot_start_date != timeslot_start_date || prev_timeslot_end_date != timeslot_end_date
                         timeslot_nb_of_days = (timeslot_end_date - timeslot_start_date + 1).to_i
  
                         timeslot_x = ((timeslot_start_date - @planning_start_date + 1) * 100 / @planning_nb_of_days).to_f
                         timeslot_width = (timeslot_nb_of_days * 100 / @planning_nb_of_days).to_f
                  %>
                      <div class="<%= "pa-planning--row--timeslot #{'unlimited' unless row.send(timeslot[:end_attribute])} #{row.planning_timeslot_class} #{"light" if timeslot_index > 0}" %>" style="<%= "left: #{timeslot_x}%; width: #{timeslot_width}%;" %>">
                        <% if timeslot[:milestones_method] %>
  
negative.code: 
      <div class="pa-planning--row-container">
        <div class="pa-planning--row-wrapper pa-planning--row-wrapper-vertical-bar">
          <div class="pa-planning--vertical-bar pa-planning--vertical-bar-highlight" style="<%= "left: #{@planning_view_highlight_x}%; width: #{@planning_view_highlight_width}%;" %>"></div>
          <% if @planning_view_highlight_name %>
            <div class="pa-planning--vertical-bar pa-planning--vertical-bar-highlight-name" style="<%= "left: #{@planning_view_highlight_x}%; width: #{@planning_view_highlight_width}%;" %>">
              <span><%= @planning_view_highlight_name %></span>
            </div>
          <% end %>
  
          <% @planning_view_months.each do |month| %>
            <div class="pa-planning--vertical-bar pa-planning--vertical-bar-<%= month[:date].month == 1 ? "year" : "month" %>" style="<%= "left: #{month[:x]}%; width: #{month[:width]}%;" %>"></div>
          <% end %>
  
          <div class="pa-planning--vertical-bar pa-planning--vertical-bar-today" style="<%= "left: #{@planning_view_today_x}%;" %>">
            <span><%= t('concepts.today') %></span>
          </div>
        </div>
  