Steam launch options in Lutris?

Trying to play Hades but the my controller (DualShock 4) won't work with it.

On a Steam forums thread, this is the suggested solution:

Could you try setting the launch options >/UseNativeGaInput=true >/UseNativeGaInputNoControllers=false ?

> · Right-click on Hades in your Steam Library and select 'Properties...'
> · In the pop-up menu, look for the field with the heading 'LAUNCH OPTIONS'

But like a poverty sticken asshole I have pirated the game so I am not running in via Steam. Moreover, I cannot install Steam because Ubuntu is throwing weird errors, but that's another issue.

Any idea how if at all I can set these options via Lutris? I have tried setting them as environment variables but it didn't work.