+ _bottom_crop->add (crop, wxGBPosition (cr, 3));
+
+ grid->Add (crop, wxGBPosition (r, 1), wxGBSpan (2, 3));
+ r += 2;
+
+ add_label_to_grid_bag_sizer (grid, this, _("Fade in"), true, wxGBPosition (r, 0));
+ _fade_in = new Timecode<ContentTime> (this);
+ grid->Add (_fade_in, wxGBPosition (r, 1), wxGBSpan (1, 3));
+ ++r;
+
+ add_label_to_grid_bag_sizer (grid, this, _("Fade out"), true, wxGBPosition (r, 0));
+ _fade_out = new Timecode<ContentTime> (this);
+ grid->Add (_fade_out, wxGBPosition (r, 1), wxGBSpan (1, 3));