diff --git a/lib/cyberarm_engine/ui/elements/container.rb b/lib/cyberarm_engine/ui/elements/container.rb
index ba7a461..5dcb392 100644
--- a/lib/cyberarm_engine/ui/elements/container.rb
+++ b/lib/cyberarm_engine/ui/elements/container.rb
@@ -45,6 +45,17 @@ module CyberarmEngine
         root.gui_state.request_recalculate
       end
 
+      def apend(&block)
+        old_container = $__current_container__
+
+        $__current_container__ = self
+        block.call(self) if block
+
+        $__current_container__ = old_container
+
+        root.gui_state.request_recalculate
+      end
+
       def render
         Gosu.clip_to(@x, @y, width, height) do
           @children.each(&:draw)
diff --git a/lib/cyberarm_engine/ui/elements/edit_line.rb b/lib/cyberarm_engine/ui/elements/edit_line.rb
index 31a17aa..2a4b65e 100644
--- a/lib/cyberarm_engine/ui/elements/edit_line.rb
+++ b/lib/cyberarm_engine/ui/elements/edit_line.rb
@@ -67,6 +67,8 @@ module CyberarmEngine
 
         if @last_text_value != value
           @last_text_value = value
+          @show_caret = true
+          @caret_last_interval = Gosu.milliseconds
 
           publish(:changed, value)
         end
@@ -251,6 +253,10 @@ module CyberarmEngine
       def value
         @text_input.text
       end
+
+      def value=(string)
+        @text_input.text = string
+      end
     end
   end
 end