How to access nvidia settings when using bumblebee/primus ?

First of all, I have to thank the gods for gifting us with something as stable and efficient and simple to use as bumblebee and simply typing primusrun before an app before running it to use it with 3d...

However, because I want to optimize a game running through wine, I would like to see what I could tweak on the nvidia side of the thing, and if there was any way of bringing up the nvidia x configuration utility.

Thank you very much !