Index: trunk/src/gui_act.c
===================================================================
--- trunk/src/gui_act.c	(revision 691)
+++ trunk/src/gui_act.c	(revision 692)
@@ -156,12 +156,29 @@
 	return FGW_SUCCESS;
 }
 
+static const char camv_acts_ResetLayer[] = "ResetLayer(@|idx, sx[, sy])";
+static const char camv_acth_ResetLayer[] = "Reset the transformation matrix of the layer.";
+static fgw_error_t camv_act_ResetLayer(fgw_arg_t *res, int argc, fgw_arg_t *argv)
+{
+	static rnd_xform_mx_t ident = RND_XFORM_MX_IDENT;
+	rnd_design_t *hl = RND_ACT_DESIGN;
+	camv_design_t *camv = (camv_design_t *)hl;
+	camv_layer_t *ly;
+	int idx;
+
+	get_layer(ly, idx, ResetLayer);
+	memcpy(ly->mx, ident, sizeof(ident));
+	RND_ACT_IRES(0);
+	return FGW_SUCCESS;
+}
+
 static rnd_action_t gui_action_list[] = {
 	{"Quit", camv_act_Quit, camv_acth_Quit, camv_acts_Quit},
 	{"Zoom", camv_act_Zoom, camv_acth_Zoom, camv_acts_Zoom},
 	{"RotateLayer", camv_act_RotateLayer, camv_acth_RotateLayer, camv_acts_RotateLayer},
 	{"TranslateLayer", camv_act_TranslateLayer, camv_acth_TranslateLayer, camv_acts_TranslateLayer},
-	{"ScaleLayer", camv_act_ScaleLayer, camv_acth_ScaleLayer, camv_acts_ScaleLayer}
+	{"ScaleLayer", camv_act_ScaleLayer, camv_acth_ScaleLayer, camv_acts_ScaleLayer},
+	{"ResetLayer", camv_act_ResetLayer, camv_acth_ResetLayer, camv_acts_ResetLayer}
 };
 
 void gui_act_init(void)