I did a search of the forums and I couldn't find it, but I apologize if this has been asked and answered. What I'm trying to do is mass edit promised playing time, i.e. "important player," "regular starter," "fringe player," etc.
When you edit one player it shows up under the contract screen, below transfer details, and it's called team status. Here is a screenshot:
I changed that, and it changed it exactly how I wanted it to in the game. However, this setting do