Heroic game launcher parameters

Steam is so easy to enter game launch parameters. Why is Heroic so difficult? I'm having a terrible time playing Bioshock remastered, the wait times for saving, hacking, and purchases at the Gatherers Gardens are anywhere from 2-5 minutes. I found a parameter that should help but I have no idea if I'm entering it in the right location.
Where do i enter the parameters in Heroic Game Launcher?