Multiband Compressor v1.0.0

I used to use the old Multiband Compressor from Wavelab 6.0 (pictured below).

I’m somewhat of an amateur when it comes to fully understanding how this plug in worked, especially since it does not seem to have controls for attack and release like all the other plugins I’ve seen. I did really like the results it gave me!

Does anybody have any insight on how this plug in works, compared to a more modern one, in the hopes that I can re-create the success?

Thanks,

Jacob Deming