Check which button pressed from OnPlayerJoined message when player joins with Player Input Manger?

So wanted to change the controls based on what button is pressed to join the game using the new Player Input Manager. I'm passed a Player Input when OnPlayerJoined is sent(Send Message) by the Player Input Manager so I imagine there's a way with that. Is there a way to see what button was pressed when the device was assigned to the Player Input in the Player Input Manager?

 

I ended up just putting some code in my controller script to pause the player and look for the button that is pressed there, thus when any button is pressed the player is assigned by the input manager and then I can check which button is pressed next in the controller for assigning the controls.