I don't know if I am missing/overlooking this, however, it seems impossible to truly manage your virtual screen's content since the virtual screen just mirrors the text entry field from the main slides. Its hard to explain with out an example, so here we go.
Example:
The congregation sees The Great Thanksgiving liturgy like this, all on one slide.
P: The Lord be with you.
All: And also with you.
P: Lift up your hearts.
All: We lift them to the Lord.
P: Let us give thanks to the Lord our God.
All: It is right to give God thanks and praise.
But with smart media and a lower thirds selected for this would show all that text squeezed into a lower third screen, not legible on the virtual screen (live stream). So it would seem the only option is to add a page break on the "main congregation slides" but then that means you have just a ton of wasted space and a break in the flow of the content. This obviously applies to other situations in a service where you may need more content displayed on the "main congregation slides" but need it broken up into smaller chunks for a lower thirds.
If I'm overlooking/not thinking about this correctly, let me know! Any assistance would be greatly appreciated!
God Bless,
Mark