Index: trunk/src/layer_vis.c
===================================================================
--- trunk/src/layer_vis.c	(revision 26062)
+++ trunk/src/layer_vis.c	(revision 26063)
@@ -321,6 +321,13 @@
 	}
 }
 
+void pcb_hid_save_and_show_layergrp_ons(int *save_array)
+{
+	pcb_layergrp_id_t i;
+	for (i = 0; i < PCB->LayerGroups.len; i++)
+		save_array[i] = PCB->LayerGroups.grp[i].vis;
+}
+
 void pcb_hid_restore_layer_ons(int *save_array)
 {
 	int i;
@@ -328,6 +335,13 @@
 		PCB->Data->Layer[i].meta.real.vis = save_array[i];
 }
 
+void pcb_hid_restore_layergrp_ons(int *save_array)
+{
+	pcb_layergrp_id_t i;
+	for (i = 0; i < PCB->LayerGroups.len; i++)
+		PCB->LayerGroups.grp[i].vis = save_array[i];
+}
+
 static const char *layer_vis_cookie = "core_layer_vis";
 
 void pcb_layer_vis_init(void)
Index: trunk/src/layer_vis.h
===================================================================
--- trunk/src/layer_vis.h	(revision 26062)
+++ trunk/src/layer_vis.h	(revision 26063)
@@ -50,13 +50,16 @@
 /* Return the last used layer (or if none, any layer) that matches target type */
 pcb_layer_id_t pcb_layer_vis_last_lyt(pcb_layer_type_t target);
 
-/* Use this to temporarily enable all layers, so that they can be
+/* Use this to temporarily make all layers visible, so that they can be
    exported even if they're not currently visible.  save_array must be
-   PCB_MAX_LAYER+2 big. */
+   PCB_MAX_LAYER+2 (or PCB_MAX_LAYERGRP) big. Groups are only saved, not
+   set visible */
 void pcb_hid_save_and_show_layer_ons(int *save_array);
+void pcb_hid_save_and_show_layergrp_ons(int *save_array);
 
 /* Use this to restore them.  */
 void pcb_hid_restore_layer_ons(int *save_array);
+void pcb_hid_restore_layergrp_ons(int *save_array);
 
 /* (un)init config watches and events to keep layers in sync */
 void pcb_layer_vis_init(void);