Change difficulty mid campaign journeys in middle earth

By Monstermike, in Support

Hi

I play LOTR- journeys in middle earth with my family and have just found out about the new adventure difficulty setting.

It would be perfect for us to really get into the game, but we are halfway through the bones of Arnor campaign on IOS, is there any way to change the difficulty mid game?

if not is it something that could be done with an app update?