In the main window, click on Bible.
In the Verse text box, you can enter a bible verse directly i.e. "John 3:16 (NIV)" or browse for one using the "..." button.
The Show Numbers In Verses option enables or disables the verse numbers in the text. This applies to the slide as well.
Show In Viewer allows you to display the current verse.
Add To Set List allows you to add this verse to your Set List.
Search brings up the bible search dialog.