In one of arrangements I'm having to use both 8va and 8vb, however I don't know how to do this in Finale(full version 2014). I know I can change whether to make it 8va or 8vb, but in this case I need both. How do I make it?
Ignore this, I found the solution, by changing it in "Smart Shape options".
I didn't need to do that. For me I just use the standard preset ottava tool and the program automatically sets it as 8va or 8vb depending on whether I put it above or below the staff in question.