@robbiejackson Thank you for implementing it.
I have now installed version 2.9.3 (Windows 10 Pro 19043.1165) and tested the new feature.
I have two comments:
1) In Settings -> Configure OpenLP -> Service 'Move to next/previous service item' is on.This causes that when I scroll back and forth between songs, 'slide total' will be incorrect. The more I flip back and forth between the last verse of the first song and the first verse of the second song, the higher the 'slide total' becomes.
2) 'Slide number' / 'Slide total' is displayed in very small print and is shown in underline. It's hard to see. I would suggest that you get the option of choosing the font and size in Settings.