I've successfully created a new Graphics Style called "code" using the Styles and Formatting window.
I did this by selecting some text that looked the way I wanted and then creating a new style with the "new style from selection" icon in the Styles and Formatting window. The new style looks ok in that when I edit it, the edit dialog shows the right font, size, and colour.
But now how can I change existing text to use the new style or add new text in the new style?
I would have expected that selecting some text and then clicking or double-clicking on the word "code" in the styles and formatting window would do it.