new BC_Title(x1=x2, y1=y, _("Frame number:")));
add_subwindow(track_frame_number =
new TrackFrameNumber(plugin, this, x1 += title->get_w(), y1));
new BC_Title(x1=x2, y1=y, _("Frame number:")));
add_subwindow(track_frame_number =
new TrackFrameNumber(plugin, this, x1 += title->get_w(), y1));