Index: trunk/src/change.c
===================================================================
--- trunk/src/change.c	(revision 12785)
+++ trunk/src/change.c	(revision 12786)
@@ -98,7 +98,7 @@
 	NULL,
 	NULL,
 	pcb_subcop_change_2nd_size,
-	NULL  /* padstack */
+	pcb_pstkop_change_2nd_size
 };
 
 static pcb_opfunc_t ChangeThermalFunctions = {
Index: trunk/src/change.h
===================================================================
--- trunk/src/change.h	(revision 12785)
+++ trunk/src/change.h	(revision 12786)
@@ -46,7 +46,7 @@
 	 PCB_TYPE_ARC | PCB_TYPE_TEXT | PCB_TYPE_ELEMENT_NAME | PCB_TYPE_ELEMENT | PCB_TYPE_SUBC | PCB_TYPE_SUBC_PART )
 
 #define	PCB_CHANGE2NDSIZE_TYPES     \
-	(PCB_TYPE_VIA | PCB_TYPE_PIN | PCB_TYPE_ELEMENT | PCB_TYPE_SUBC| PCB_TYPE_SUBC_PART)
+	(PCB_TYPE_PSTK | PCB_TYPE_VIA | PCB_TYPE_PIN | PCB_TYPE_ELEMENT | PCB_TYPE_SUBC| PCB_TYPE_SUBC_PART)
 
 /* We include polygons here only to inform the user not to do it that way.  */
 #define PCB_CHANGECLEARSIZE_TYPES	\
Index: trunk/src/obj_pstk_op.c
===================================================================
--- trunk/src/obj_pstk_op.c	(revision 12785)
+++ trunk/src/obj_pstk_op.c	(revision 12786)
@@ -207,3 +207,30 @@
 	return NULL;
 }
 
+
+void *pcb_pstkop_change_2nd_size(pcb_opctx_t *ctx, pcb_pstk_t *ps)
+{
+	pcb_pstk_proto_t proto;
+	pcb_cardinal_t nproto;
+
+	/* create the new prototype and insert it */
+	pcb_pstk_proto_copy(&proto, pcb_pstk_get_proto(ps));
+	if (!ctx->chgsize.is_absolute) {
+		proto.hdia += ctx->chgsize.value;
+		if (proto.hdia < ctx->chgsize.pcb->minDrill)
+			proto.hdia = ctx->chgsize.pcb->minDrill;
+	}
+	else
+		proto.hdia = ctx->chgsize.value;
+	nproto = pcb_pstk_proto_insert_dup(ps->parent.data, &proto, 1);
+	pcb_pstk_proto_free_fields(&proto);
+
+	if (nproto == PCB_PADSTACK_INVALID)
+		return NULL;
+
+	if (pcb_pstk_change_instance(ps, &nproto, NULL, NULL, NULL) == 0)
+		return ps;
+
+	return NULL;
+}
+
Index: trunk/src/obj_pstk_op.h
===================================================================
--- trunk/src/obj_pstk_op.h	(revision 12785)
+++ trunk/src/obj_pstk_op.h	(revision 12786)
@@ -41,9 +41,8 @@
 void *pcb_pstkop_rotate90(pcb_opctx_t *ctx, pcb_pstk_t *ps);
 
 void *pcb_pstkop_change_size(pcb_opctx_t *ctx, pcb_pstk_t *ps);
+void *pcb_pstkop_change_2nd_size(pcb_opctx_t *ctx, pcb_pstk_t *ps);
 
-
 /*** TODO: unimplemented ones ***/
 
-void *pcb_pstkop_change_2nd_size(pcb_opctx_t *ctx, pcb_pstk_t *ps);
 void *pcb_pstkop_change_clear_size(pcb_opctx_t *ctx, pcb_pstk_t *ps);