After a service list has been set up - inclusive of background and margin, I found that if I were to go back to change the margin of any song, I must locate the original background image and click on the thumbnail of the background picture. Only then I can change the custom margin.
If it is not a lot of effort, could the margin be change for any song in focus/being projected without having to first locate the thumbnail. This will be a benefit especially when you realise that the verse currently being projected has very awkward "break".
I just noticed an interesting "feature" tonight. When you hit Ctrl-F9, background selection is also disabled!
Thanks and I wish everyone a blessed this festive season.
William