Try using "Optional Split" in the Song Editor on large paragraphs, or edit the Theme to have a smaller text box. Many words will go to another page instead of 1 or 2.
Or you can do the opposite making bigger the text box size in the Theme Editor.
Make sure the projector is connected to computer and powered on before starting OpenLP.
Go to Settings>Configure OpenLP
In "Select monitor for output display" select "Screen 2". This should be enough.
Great idea to make tutorials!
I think one topic barely touched is the custom stages (how to customize one with html and css).
YouTube is the best option, because is where everyone looks first.
Have a nice day!