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diff --git a/synfig-studio/src/synfigapp/actions/valuenodeconstunsetstatic.cpp b/synfig-studio/src/synfigapp/actions/valuenodeconstunsetstatic.cpp
new file mode 100644
index 0000000..e26dee4
--- /dev/null
+++ b/synfig-studio/src/synfigapp/actions/valuenodeconstunsetstatic.cpp
@@ -0,0 +1,169 @@
+/* === S Y N F I G ========================================================= */
+/*!	\file valuenodeconstunsetstatic.cpp
+**	\brief Template File
+**
+**	$Id$
+**
+**	\legal
+**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**	Copyright (c) 2010 Carlos López
+**
+**	This package is free software; you can redistribute it and/or
+**	modify it under the terms of the GNU General Public License as
+**	published by the Free Software Foundation; either version 2 of
+**	the License, or (at your option) any later version.
+**
+**	This package is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+**	General Public License for more details.
+**	\endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+#	include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+#	include <config.h>
+#endif
+
+#include "valuenodeconstunsetstatic.h"
+#include <synfigapp/canvasinterface.h>
+
+#include <synfigapp/general.h>
+
+#endif
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+using namespace synfigapp;
+using namespace Action;
+
+/* === M A C R O S ========================================================= */
+
+ACTION_INIT(Action::ValueNodeConstUnSetStatic);
+ACTION_SET_NAME(Action::ValueNodeConstUnSetStatic,"ValueNodeConstUnSetStatic");
+ACTION_SET_LOCAL_NAME(Action::ValueNodeConstUnSetStatic,N_("UnSet Static"));
+ACTION_SET_TASK(Action::ValueNodeConstUnSetStatic,"unsetstatic");
+ACTION_SET_CATEGORY(Action::ValueNodeConstUnSetStatic,Action::CATEGORY_VALUEDESC|Action::CATEGORY_VALUENODE);
+ACTION_SET_PRIORITY(Action::ValueNodeConstUnSetStatic,0);
+ACTION_SET_VERSION(Action::ValueNodeConstUnSetStatic,"0.0");
+ACTION_SET_CVS_ID(Action::ValueNodeConstUnSetStatic,"$Id$");
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+Action::ValueNodeConstUnSetStatic::ValueNodeConstUnSetStatic()
+{
+}
+
+Action::ParamVocab
+Action::ValueNodeConstUnSetStatic::get_param_vocab()
+{
+	ParamVocab ret(Action::CanvasSpecific::get_param_vocab());
+
+	ret.push_back(ParamDesc("value_node",Param::TYPE_VALUENODE)
+		.set_local_name(_("ValueNode"))
+	);
+
+	return ret;
+}
+
+bool
+Action::ValueNodeConstUnSetStatic::is_candidate(const ParamList &x)
+{
+	if (!candidate_check(get_param_vocab(),x))
+		return false;
+
+	ValueNode::Handle value_node;
+	ValueDesc value_desc(x.find("value_desc")->second.get_value_desc());
+
+	if(value_desc.parent_is_value_node_const() || value_desc.parent_is_linkable_value_node())
+		value_node = value_desc.get_value_node();
+	else
+		value_node = x.find("value_node")->second.get_value_node();
+
+	// We need a constant value node or a constant layer param.
+	return (
+			(ValueNode_Const::Handle::cast_dynamic(value_node) &&
+			// We need the constant value node to be static.
+			ValueNode_Const::Handle::cast_dynamic(value_node)->get_static())
+			);
+}
+
+bool
+Action::ValueNodeConstUnSetStatic::set_param(const synfig::String& name, const Action::Param &param)
+{
+	if(!value_node && name=="value_desc" && param.get_type()==Param::TYPE_VALUEDESC)
+	{
+		ValueDesc value_desc(param.get_value_desc());
+		if(!value_desc.parent_is_value_node())
+			return false;
+
+		value_node=ValueNode_Const::Handle::cast_dynamic(value_desc.get_value_node());
+
+		if(!value_node)
+			return false;
+
+		return true;
+	}
+
+	if(!value_node && name=="value_node" && param.get_type()==Param::TYPE_VALUENODE)
+	{
+		value_node=ValueNode_Const::Handle::cast_dynamic(param.get_value_node());
+
+		if(!value_node)
+			return false;
+
+		return true;
+	}
+
+	return Action::CanvasSpecific::set_param(name,param);
+}
+
+bool
+Action::ValueNodeConstUnSetStatic::is_ready()const
+{
+	if(!value_node)
+		return false;
+	return Action::CanvasSpecific::is_ready();
+}
+
+void
+Action::ValueNodeConstUnSetStatic::perform()
+{
+	old_static_value=value_node->get_static();
+
+	if(old_static_value==false)
+	{
+		set_dirty(false);
+		return;
+	}
+	set_dirty(true);
+	value_node->set_static(false);
+
+	value_node->changed();
+}
+
+void
+Action::ValueNodeConstUnSetStatic::undo()
+{
+	if(old_static_value==value_node->get_static())
+	{
+		set_dirty(false);
+		return;
+	}
+
+	set_dirty(true);
+	value_node->set_static(old_static_value);
+
+	value_node->changed();
+
+}