I’m wondering why the apply button is not shown on Mac OS X in dialog_canvas.tcl. Editing GOP size and position is a pain since you have to edit, then hit ok, then reopen the dialog, then edit, the hit ok, repeat, etc ...
Commenting out lines 211 & 215 gives me back the Apply button which works quite well. I suppose this is something to do with the Apple Human Interface Guidelines that prefer saving edits automatically on close over requiring the user to hit a save/apply button. In this case, however, the Apply button is mainly useful for live edits (it could be renamed to Update?). I suppose another option is to update the interface whenever enter is received in a text box.
Anyway, I’d like to see the Apply button back in 0.47 :D