diff -r 2dda1ad6dc7a -r 012418e7dc90 ui/common/context.h
--- a/ui/common/context.h	Wed Apr 02 20:31:47 2014 +0200
+++ b/ui/common/context.h	Thu Apr 03 11:12:22 2014 +0200
@@ -38,13 +38,15 @@
 extern "C" {
 #endif
 
-typedef struct UiVar UiVar;
+typedef struct UiVar         UiVar;
+typedef struct UiGroupWidget UiGroupWidget;
 
 struct UiContext {
     UiObject      *toplevel;
     UcxMempool    *mempool;
     UcxMap        *vars; // key: char*  value: UiVar*
     UcxList       *groups; // int list
+    UcxList       *group_widgets; // UiGroupWidget* list
     
 #ifdef UI_GTK
     GtkAccelGroup *accel_group;
@@ -58,6 +60,12 @@
     UcxMap *from;
 };
 
+struct UiGroupWidget {
+    UIWIDGET widget;
+    int      *groups;
+    int      numgroups;
+};
+
 enum UiVarType {
     UI_VAR_INTEGER = 0,
     UI_VAR_STRING
@@ -68,7 +76,8 @@
 UiVar* uic_connect_var(UiContext *ctx, char *name, int type);
 void* uic_create_value(UcxAllocator *a, int type);
 
-
+void uic_check_group_widgets(UiContext *ctx);
+void uic_add_group_widget(UiContext *ctx, UIWIDGET widget, UcxList *groups);
 
 #ifdef	__cplusplus
 }