Page 260 - ProShow Producer Manual
P. 260
260 11. Text Layers
Captions or Text Layers
Simply put, there's no one, right answer. While very similar, they each have
their own unique features. For some shows, captions are perfect. In others,
your text may need the extra visual impact only Text Layers can provide.
The best advice is to use whatever works for the show you are creating.