Coder des logiciels

Windows C ou C++ Hello guys. On Unreal engine 4.17 I'm trying to make a C++ actor, with a boolean value : if true it means = Horizontal and toggle to Horizontal split screen, if False = Vertical I'm trying to set values of the enums types, updateactivesplitscreen, but it doesn't work. I don't know what I should do and this is really frustrating. That's why I'm asking your help. Create a C++ actor set it with the boolean value or maybe with en enum but inside the game. I want to change it inside the game and not in the project settings I'm not sure I was understable, I thank you very much for reading me. Product Version: UE 4.17