Thank you for your feedback. You are totally right and your feature makes a lot of sense.

I added your feature to the list of things to do, however I don't know when it will be implemented.

The reason why VideoPsalm has style "levels" is simply because it enables the operator to adjust his slides either globally, without sacrificing the fine tuning at the slide level.

videopsalm.wixsite.com

1. Select the "Songbooks" style level: or alternatively Click the "Songbooks" button, as it will automatically select the "Songbooks" style level: From now on, all changes that you do will be applied to the "Songbooks" style level, which means that they will apply to all songbooks, theirs song

Learn more about VideoPsalm cascading styles:

The flexibility of cascading styles Automatic style level switching

How to change the background of a song or a whole songbook - Cascading styles - Part one

I would be intrested in know what you find to be too complicated? Personally I like the VideoPsalms method. I only quickly tested OpenLp for a few hours probably 10 years ago at this point so I'm not sure what the workflow was like over there but I would like to hear