It's not very clear or easy to format text, and I believe that in writing, italicized and bolded letters/words can really help add emotion to the story, by showing that the writer wants attention drawn to it.
SW does have a way to display a word/sentence as BOLD or ITALICIZED. To have one of your words be displayed as BOLD, simply use the * before and after your word. If you want to have one of your words italicized, use the _ before and after. This is the only formatting 'tool' that SW has. It won't show up here, but it does in your draft/chapter/story.
Customer support service by UserEcho