GM Connected GamePlay Settings

[YannWildThing]

How can we modify GM Connected GamePlay Settings other then the predefined configurations.

I'm the commissioner and I would like to make some adjustment to increase the difficulty level.

We are already playing Superstar with Hardcore Simulation. I tried Custom but can't do any adjustments.

All our player teams are at the top of their division. I would like to make it more challenging during the season when facing CPU teams. 

Thanks for your support.