g_signal_connect (on_off, "toggled", G_CALLBACK(on_off_toggled), sfd.xml);
set_dest_model (GTK_TREE_VIEW (dest), sfd.dict);
psppire_selector_set_subjects (PSPPIRE_SELECTOR (selector),
g_signal_connect (on_off, "toggled", G_CALLBACK(on_off_toggled), sfd.xml);
set_dest_model (GTK_TREE_VIEW (dest), sfd.dict);
psppire_selector_set_subjects (PSPPIRE_SELECTOR (selector),