diff --git a/app/controllers/quantities_controller.rb b/app/controllers/quantities_controller.rb
index 4889123..0e2bccb 100644
--- a/app/controllers/quantities_controller.rb
+++ b/app/controllers/quantities_controller.rb
@@ -1,6 +1,6 @@
 class QuantitiesController < ApplicationController
   before_action :find_project_by_project_id, only: [:index, :create]
-  before_action :find_quantity, only: [:destroy, :toggle]
+  before_action :find_quantity, only: [:destroy, :toggle, :up, :down, :left, :right]
   before_action :authorize
 
   def index
@@ -31,6 +31,26 @@ class QuantitiesController < ApplicationController
     redirect_to project_quantities_url(@project)
   end
 
+  def up
+    @quantity.move_left if @quantity.left_sibling.present?
+    redirect_to project_quantities_url(@project)
+  end
+
+  def down
+    @quantity.move_right if @quantity.right_sibling.present?
+    redirect_to project_quantities_url(@project)
+  end
+
+  def left
+    @quantity.move_to_right_of(@quantity.parent) if @quantity.parent.present?
+    redirect_to project_quantities_url(@project)
+  end
+
+  def right
+    @quantity.move_to_child_of(@quantity.left_sibling) if @quantity.left_sibling.present?
+    redirect_to project_quantities_url(@project)
+  end
+
   private
 
   def quantity_params
diff --git a/app/views/quantities/index.html.erb b/app/views/quantities/index.html.erb
index bcd54a4..b0043d1 100644
--- a/app/views/quantities/index.html.erb
+++ b/app/views/quantities/index.html.erb
@@ -27,10 +27,11 @@
   <table class="list">
     <thead>
       <tr>
+        <th><%= l(:field_order) %></th>
         <th><%= l(:field_name) %></th>
         <th><%= l(:field_domain) %></th>
         <th><%= l(:field_description) %></th>
-        <th style="width:15%"><%= l(:field_action) %></th>
+        <th><%= l(:field_action) %></th>
       </tr>
     </thead>
     <tbody>
@@ -42,11 +43,44 @@
             quantity_class += " primary" if q.primary
           %>
           <tr id="quantity-<%= q.id %>" class="<%= quantity_class %>">
+            <td class="order">
+              <%=
+                if q.left_sibling.present?
+                  link_to '', up_quantity_path(q), {method: :post, class: "icon icon-move-up"}
+                else
+                  link_to '', '', {class: "icon"}
+                end
+              %>
+              <%=
+                if q.right_sibling.present?
+                  link_to '', down_quantity_path(q),
+                    {method: :post, class: "icon icon-move-down"}
+                else
+                  link_to '', '', {class: "icon"}
+                end
+              %>
+              <%=
+                if q.parent.present?
+                  link_to '', left_quantity_path(q),
+                    {method: :post, class: "icon icon-move-left"}
+                else
+                  link_to '', '', {class: "icon"}
+                end
+              %>
+              <%=
+                if q.left_sibling.present?
+                  link_to '', right_quantity_path(q),
+                    {method: :post, class: "icon icon-move-right"}
+                else
+                  link_to '', '', {class: "icon"}
+                end
+              %>
+            </td>
             <td class="name"><span><%= q.name %></span></td>
             <td class="domain"><%= q.domain %></td>
             <td class="description"><%= q.description %></td>
             <td class="action">
-              <%= link_to l(:button_toggle), toggle_quantity_path(q),
+              <%= link_to l(:button_primary), toggle_quantity_path(q),
                 {method: :post, class: "icon #{q.primary ? "icon-fav" : "icon-fav-off"}"} %>
               <%= delete_link quantity_path(q), data: {} %>
             </td>
diff --git a/assets/images/1leftarrow.png b/assets/images/1leftarrow.png
new file mode 100644
index 0000000..f2f0273
Binary files /dev/null and b/assets/images/1leftarrow.png differ
diff --git a/assets/images/1rightarrow.png b/assets/images/1rightarrow.png
new file mode 100644
index 0000000..ea12516
Binary files /dev/null and b/assets/images/1rightarrow.png differ
diff --git a/assets/stylesheets/body_tracking.css b/assets/stylesheets/body_tracking.css
index df6123e..0a1b032 100644
--- a/assets/stylesheets/body_tracking.css
+++ b/assets/stylesheets/body_tracking.css
@@ -1,3 +1,8 @@
 table.list tr.quantity.primary td.name {font-weight: bold;}
 table.list td.action,
 table.list td.value {text-align: right;}
+table.list td.action,
+table.list td.name {white-space: nowrap;}
+
+.icon-move-left { background-image: url(../images/1leftarrow.png); }
+.icon-move-right { background-image: url(../images/1rightarrow.png); }
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 585f381..97738e2 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -1,6 +1,7 @@
 # English strings go here for Rails i18n
 en:
   body_trackers_menu_caption: 'Body trackers'
+  field_order: 'Order'
   field_action: 'Action'
   field_reference: 'Reference'
   field_group: 'Group'
@@ -10,7 +11,7 @@ en:
   field_domain: 'Domain'
   field_parent_quantity: 'Parent'
   field_shortname: 'Short name'
-  button_toggle: 'Toggle'
+  button_primary: 'Primary'
   activerecord:
     errors:
       models:
diff --git a/config/routes.rb b/config/routes.rb
index bfdc24c..c52acc8 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -13,6 +13,7 @@ resources :projects do
     resources :sources, :only => [:index, :create, :destroy]
     resources :quantities, :only => [:index, :create, :destroy] do
       post 'toggle', on: :member
+      post 'up', 'down', 'left', 'right', on: :member
     end
     resources :units, :only => [:index, :create, :destroy]
   end
diff --git a/init.rb b/init.rb
index 6f87ae9..ab1b3ab 100644
--- a/init.rb
+++ b/init.rb
@@ -24,7 +24,7 @@ Redmine::Plugin.register :body_tracking do
       :body_trackers => [:defaults],
       :ingredients => [:create, :destroy, :import],
       :sources => [:create, :destroy],
-      :quantities => [:create, :destroy, :toggle],
+      :quantities => [:create, :destroy, :toggle, :up, :down, :left, :right],
       :units => [:create, :destroy],
     }, require: :loggedin
   end