diff --git a/app/assets/stylesheets/copycat_engine.css b/app/assets/stylesheets/copycat_engine.css
index 55a1849..e5772b2 100644
--- a/app/assets/stylesheets/copycat_engine.css
+++ b/app/assets/stylesheets/copycat_engine.css
@@ -400,6 +400,19 @@ div.edit h2 {
   text-overflow: ellipsis;
 }
 
+div.edit .variables table {
+width: auto;
+}
+
+
+div.edit .variables table th {
+  font-weight: bold;
+}
+div.edit .variables table td,
+div.edit .variables table th {
+padding: 1em;
+border: 1px dotted;
+}
 div.edit textarea {
   width: 99%;
   margin-top: 1em;
@@ -461,3 +474,6 @@ body {
   margin-bottom: .5em;
 }
 
+.variables {
+  clear: both;
+}
diff --git a/app/models/copycat_translation.rb b/app/models/copycat_translation.rb
index 3c34b1e..78738f9 100644
--- a/app/models/copycat_translation.rb
+++ b/app/models/copycat_translation.rb
@@ -6,17 +6,24 @@ class CopycatTranslation < ActiveRecord::Base
 
   validates :key, :presence => true
   validates :locale, :presence => true
-  
-  attr_accessible :locale, :key, :value
+
+  attr_accessible :locale, :key, :value, :options
+  serialize :options, Hash
+  RESERVED_KEYS = [:scope, :default, :separator, :resolve, :rescue_format]
+
+  def user_parameters
+    # RESERVED_KEYS from i18n gem
+    self.options.dup.delete_if {|k| RESERVED_KEYS.include? k}
+  end
 
   module Serialize
-   
+
     def import_yaml(yaml)
       hash = YAML.load(yaml)
       hash.each do |locale, data|
         hash_flatten(data).each do |key, value|
           c = where(key: key, locale: locale).first
-          c ||= new(key: key, locale: locale) 
+          c ||= new(key: key, locale: locale)
           c.value = value
           c.save
         end
@@ -31,14 +38,14 @@ def export_yaml
       end
       hash.to_yaml
     end
-    
+
     # {"foo"=>{"a"=>"1", "b"=>"2"}} ----> {"foo.a"=>1, "foo.b"=>2}
     def hash_flatten(hash)
-      result = {} 
+      result = {}
       hash.each do |key, value|
-        if value.is_a? Hash 
+        if value.is_a? Hash
           hash_flatten(value).each { |k,v| result["#{key}.#{k}"] = v }
-        else 
+        else
           result[key] = value
         end
       end
diff --git a/app/views/copycat_translations/edit.html.erb b/app/views/copycat_translations/edit.html.erb
index fc4ddd4..1aa583f 100644
--- a/app/views/copycat_translations/edit.html.erb
+++ b/app/views/copycat_translations/edit.html.erb
@@ -1,6 +1,30 @@
 <div class="edit">
-  <h2><%= @copycat_translation.key%></h2>
+  <h2><%= @copycat_translation.key %></h2>
   <%= button_to "Delete this item", copycat_translation_path(@copycat_translation), :method => :delete, :onclick => "return confirm('Are you sure?');" %>
+  <%- if @copycat_translation.user_parameters.present? %>
+    <div class="variables">
+      <h4>Variables</h4>
+      <p> You could use the following variables in your inserted text, just using %{variable} and you will obtain its value</p>
+      <table>
+        <thead>
+          <tr>
+            <th>Variable</th>
+            <th>Value</th>
+            <th>Usage</th>
+          </tr>
+        </thead>
+        <tbody>
+          <%- @copycat_translation.user_parameters.each do |key, value| %>
+            <tr>
+              <td><%= key %></td>
+              <td><%= value %></td>
+              <td><%= "%{#{key}}" %></td>
+            </tr>
+          <% end %>
+        </tbody>
+      </table>
+    </div>
+  <% end %>
   <%= form_for @copycat_translation, :url => { :action => "update" } do |f| %>
     <%= f.text_area :value, :rows => 12 %>
     <%= f.submit "Update" %>
diff --git a/db/migrate/20120313191745_create_copycat_translations.rb b/db/migrate/20120313191745_create_copycat_translations.rb
index f5b00d3..9004e1d 100644
--- a/db/migrate/20120313191745_create_copycat_translations.rb
+++ b/db/migrate/20120313191745_create_copycat_translations.rb
@@ -4,6 +4,7 @@ def up
       t.string :locale
       t.string :key
       t.text :value
+      t.text :options
       t.timestamps
     end
     change_table :copycat_translations do |t|
diff --git a/lib/copycat/implementation.rb b/lib/copycat/implementation.rb
index 48a43da..f32dc1a 100644
--- a/lib/copycat/implementation.rb
+++ b/lib/copycat/implementation.rb
@@ -7,7 +7,7 @@ def lookup(locale, key, scope = [], options = {})
       return cct.value if cct
       value = super(locale, key, scope, options)
       if value.is_a?(String) || value.nil?
-        CopycatTranslation.create(locale: locale.to_s, key: key.to_s, value: value)
+        CopycatTranslation.create(locale: locale.to_s, key: key.to_s, value: value, options: options)
       end
       value
     end