--- a/branches/Gxsm-2x3-transition-sig/plug-ins/hard/sranger_mk3_hwi.h
+++ b/branches/Gxsm-2x3-transition-sig/plug-ins/hard/sranger_mk3_hwi.h
@@ -229,6 +229,8 @@
 
 	virtual int lookup_signal_by_ptr(gint64 sigptr);
 	virtual const gchar *lookup_signal_name_by_index(int i);
+	virtual const gchar *lookup_signal_unit_by_index(int i);
+	virtual double lookup_signal_scale_by_index(int i);
 	virtual int change_signal_input(int signal_index, gint32 input_id);
 	virtual int query_module_signal_input(gint32 input_id);
 	int read_signal_lookup ();