Index: trunk/src/extobj.c
===================================================================
--- trunk/src/extobj.c	(revision 28899)
+++ trunk/src/extobj.c	(revision 28900)
@@ -105,7 +105,7 @@
 	return NULL;
 }
 
-pcb_extobj_float_new_spawn(pcb_extobj_t *eo, pcb_subc_t *subc_copy_from, pcb_any_obj_t *edit_obj)
+void pcb_extobj_float_new_spawn(pcb_extobj_t *eo, pcb_subc_t *subc_copy_from, pcb_any_obj_t *edit_obj)
 {
 	pcb_data_t *data = pcb_extobj_parent_data(edit_obj);
 	pcb_board_t *pcb;
@@ -119,7 +119,7 @@
 	save = subc_copy_from->extobj;
 	subc_copy_from->extobj = NULL;
 	PCB_FLAG_CLEAR(PCB_FLAG_FLOATER, edit_obj);
-	sc = pcb_extobj_conv_obj(pcb, eo, pcb->Data, edit_obj, 1);
+	sc = pcb_extobj_conv_obj_using(pcb, eo, pcb->Data, edit_obj, 1, subc_copy_from);
 	pcb_subc_copy_meta(sc, subc_copy_from);
 	subc_copy_from->extobj = save;
 }
@@ -133,7 +133,7 @@
 		eo->del_pre(sc);
 }
 
-static pcb_subc_t *pcb_extobj_conv_list(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, vtp0_t *list, pcb_bool remove)
+static pcb_subc_t *pcb_extobj_conv_list(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, vtp0_t *list, pcb_bool remove, pcb_subc_t *copy_from)
 {
 	pcb_subc_t *res;
 
@@ -140,7 +140,7 @@
 	if ((eo->conv_objs == NULL) || (list->used == 0))
 		return NULL;
 
-	res = eo->conv_objs(dst, list);
+	res = eo->conv_objs(dst, list, copy_from);
 
 	if ((res != NULL) && remove) {
 		long n;
@@ -153,7 +153,7 @@
 	return res;
 }
 
-static pcb_subc_t *pcb_extobj_conv_flag_objs(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_data_t *src, pcb_bool remove, pcb_flag_values_t flg)
+static pcb_subc_t *pcb_extobj_conv_flag_objs_using(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_data_t *src, pcb_bool remove, pcb_flag_values_t flg, pcb_subc_t *copy_from)
 {
 	vtp0_t list;
 	pcb_subc_t *res;
@@ -160,7 +160,7 @@
 
 	vtp0_init(&list);
 	pcb_data_list_by_flag(src, &list, PCB_OBJ_ANY, flg);
-	res = pcb_extobj_conv_list(pcb, eo, dst, &list, remove);
+	res = pcb_extobj_conv_list(pcb, eo, dst, &list, remove, copy_from);
 	vtp0_uninit(&list);
 
 	return res;
@@ -168,16 +168,16 @@
 
 pcb_subc_t *pcb_extobj_conv_selected_objs(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_data_t *src, pcb_bool remove)
 {
-	return pcb_extobj_conv_flag_objs(pcb, eo, dst, src, remove, PCB_FLAG_SELECTED);
+	return pcb_extobj_conv_flag_objs_using(pcb, eo, dst, src, remove, PCB_FLAG_SELECTED, NULL);
 }
 
 pcb_subc_t *pcb_extobj_conv_all_objs(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_data_t *src, pcb_bool remove)
 {
-	return pcb_extobj_conv_flag_objs(pcb, eo, dst, src, remove, 0);
+	return pcb_extobj_conv_flag_objs_using(pcb, eo, dst, src, remove, 0, NULL);
 }
 
 
-pcb_subc_t *pcb_extobj_conv_obj(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_any_obj_t *src, pcb_bool remove)
+pcb_subc_t *pcb_extobj_conv_obj_using(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_any_obj_t *src, pcb_bool remove, pcb_subc_t *copy_from)
 {
 	vtp0_t list;
 	pcb_subc_t *res;
@@ -184,7 +184,7 @@
 
 	vtp0_init(&list);
 	vtp0_append(&list, src);
-	res = pcb_extobj_conv_list(pcb, eo, dst, &list, remove);
+	res = pcb_extobj_conv_list(pcb, eo, dst, &list, remove, copy_from);
 	vtp0_uninit(&list);
 
 	return res;
@@ -191,3 +191,7 @@
 }
 
 
+pcb_subc_t *pcb_extobj_conv_obj(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_any_obj_t *src, pcb_bool remove)
+{
+	return pcb_extobj_conv_obj_using(pcb, eo, dst, src, remove, NULL);
+}
Index: trunk/src/extobj.h
===================================================================
--- trunk/src/extobj.h	(revision 28899)
+++ trunk/src/extobj.h	(revision 28900)
@@ -60,7 +60,7 @@
 	pcb_extobj_del_t (*float_del)(pcb_subc_t *subc, pcb_any_obj_t *floater); /* called when a floater object is to be removed; returns what the core should do; if not specified: remove the subc */
 	void (*chg_attr)(pcb_subc_t *subc, const char *key, const char *value); /* called after an attribute changed; value == NULL means attribute is deleted */
 	void (*del_pre)(pcb_subc_t *subc); /* called before the extobj subcircuit is deleted - should free any internal cache, but shouldn't delete the subcircuit */
-	pcb_subc_t *(*conv_objs)(pcb_data_t *dst, vtp0_t *objs); /* called to convert objects into an extobj subc; returns NULL on error; objects should not be changed */
+	pcb_subc_t *(*conv_objs)(pcb_data_t *dst, vtp0_t *objs, pcb_subc_t *copy_from); /* called to convert objects into an extobj subc; returns NULL on error; objects should not be changed; if copy_from is not NULL, the new extobj is being created by copying copy_from (the implementation should pick up info from there, not from PCB) */
 
 	/* dynamic data - filled in by core */
 	int idx;
@@ -85,10 +85,12 @@
 
 /* Creates and returns a new extended object on dst, using (selected|all)
    object(s) of src. If the operation was successful and remove is true,
-   remove selected objects. */
+   remove selected objects. The "using" variant carries an existing extobj
+   of the same type that is used as a source of metadata */
 pcb_subc_t *pcb_extobj_conv_selected_objs(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_data_t *src, pcb_bool remove);
 pcb_subc_t *pcb_extobj_conv_all_objs(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_data_t *src, pcb_bool remove);
 pcb_subc_t *pcb_extobj_conv_obj(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_any_obj_t *src, pcb_bool remove);
+pcb_subc_t *pcb_extobj_conv_obj_using(pcb_board_t *pcb, const pcb_extobj_t *eo, pcb_data_t *dst, pcb_any_obj_t *src, pcb_bool remove, pcb_subc_t *copy_from);
 
 /* for internal use: when an extobj needs to be cloned becase a new floater
    is added */
Index: trunk/src/extobj_helper.h
===================================================================
--- trunk/src/extobj_helper.h	(revision 28899)
+++ trunk/src/extobj_helper.h	(revision 28900)
@@ -74,7 +74,7 @@
 	return 0;
 }
 
-PCB_INLINE pcb_subc_t *pcb_exto_create(pcb_data_t *dst, const char *eoname, const pcb_dflgmap_t *layers, pcb_coord_t ox, pcb_coord_t oy, pcb_bool on_bottom)
+PCB_INLINE pcb_subc_t *pcb_exto_create(pcb_data_t *dst, const char *eoname, const pcb_dflgmap_t *layers, pcb_coord_t ox, pcb_coord_t oy, pcb_bool on_bottom, pcb_subc_t *copy_from)
 {
 	pcb_subc_t *subc = pcb_subc_alloc();
 	pcb_board_t *pcb = NULL;
Index: trunk/src_plugins/exto_std/dimension.c
===================================================================
--- trunk/src_plugins/exto_std/dimension.c	(revision 28899)
+++ trunk/src_plugins/exto_std/dimension.c	(revision 28900)
@@ -326,12 +326,12 @@
 	}
 }
 
-static pcb_subc_t *pcb_dimension_conv_objs(pcb_data_t *dst, vtp0_t *objs)
+static pcb_subc_t *pcb_dimension_conv_objs(pcb_data_t *dst, vtp0_t *objs, pcb_subc_t *copy_from)
 {
 	long n;
 	pcb_subc_t *subc;
 	pcb_line_t *l;
-	pcb_layer_t *ly;
+	pcb_layer_t *ly, *targetly = NULL;
 	pcb_dflgmap_t layers[] = {
 		{"edit", PCB_LYT_DOC, "extobj", 0, 0},
 		{"target", PCB_LYT_DOC, "fab", 0, 0},
@@ -350,16 +350,20 @@
 
 	layers[0].lyt = pcb_layer_flags_(l->parent.layer);
 	pcb_layer_purpose_(l->parent.layer, &layers[0].purpose);
-	if (dst->parent_type == PCB_PARENT_BOARD) {
+	if ((copy_from != NULL) && (copy_from->data->LayerN > LID_TARGET) && (copy_from->data->Layer[LID_TARGET].meta.bound.real != NULL)) {
+		targetly = copy_from->data->Layer[LID_TARGET].meta.bound.real;
+	}
+	else if (dst->parent_type == PCB_PARENT_BOARD) {
 		pcb_board_t *pcb = dst->parent.board;
-		pcb_layer_t *curr = PCB_CURRLAYER(pcb);
-		if (curr != NULL) {
-			layers[1].lyt = pcb_layer_flags_(curr);
-			pcb_layer_purpose_(curr, &layers[1].purpose);
-		}
+		targetly = PCB_CURRLAYER(pcb);
 	}
 
-	subc = pcb_exto_create(dst, "dimension", layers, l->Point1.X, l->Point1.Y, 0);
+	if (targetly != NULL) {
+		layers[1].lyt = pcb_layer_flags_(targetly);
+		pcb_layer_purpose_(targetly, &layers[1].purpose);
+	}
+
+	subc = pcb_exto_create(dst, "dimension", layers, l->Point1.X, l->Point1.Y, 0, copy_from);
 	pcb_attribute_put(&subc->Attributes, "extobj::displace", "4mm");
 
 	/* create edit-objects */
Index: trunk/src_plugins/exto_std/line_of_vias.c
===================================================================
--- trunk/src_plugins/exto_std/line_of_vias.c	(revision 28899)
+++ trunk/src_plugins/exto_std/line_of_vias.c	(revision 28900)
@@ -223,7 +223,7 @@
 }
 
 
-static pcb_subc_t *pcb_line_of_vias_conv_objs(pcb_data_t *dst, vtp0_t *objs)
+static pcb_subc_t *pcb_line_of_vias_conv_objs(pcb_data_t *dst, vtp0_t *objs, pcb_subc_t *copy_from)
 {
 	long n;
 	pcb_subc_t *subc;
@@ -248,8 +248,9 @@
 	layers[0].lyt = pcb_layer_flags_(l->parent.layer);
 	pcb_layer_purpose_(l->parent.layer, &layers[0].purpose);
 
-	subc = pcb_exto_create(dst, "line-of-vias", layers, l->Point1.X, l->Point1.Y, 0);
-	pcb_attribute_put(&subc->Attributes, "extobj::pitch", "4mm");
+	subc = pcb_exto_create(dst, "line-of-vias", layers, l->Point1.X, l->Point1.Y, 0, copy_from);
+	if (copy_from == NULL)
+		pcb_attribute_put(&subc->Attributes, "extobj::pitch", "4mm");
 
 	/* create edit-objects */
 	ly = &subc->data->Layer[LID_EDIT];