Connectx-8 bifurcation setting for ssd

I want to connect 4 NVME SSDs using the bifurcation feature of the connectx-8 (900-9X81E-00EX-DT0) card, but I don’t have detailed configuration settings. Can you provide an example of a 4 x gen5 x 4 or 4 x gen5 x 2 mlxconfig configuration?