+void psppire_var_view_push_model (PsppireVarView *vv);
+
+gboolean psppire_var_view_set_current_model (PsppireVarView *vv, gint n);
+GtkTreeModel *psppire_var_view_get_current_model (PsppireVarView *vv);
+
+void psppire_var_view_clear (PsppireVarView *vv);