Why doe A/B require active gui but bypass does not

Cubase
1

Im going down 1 path, then I cant continue because feature is missing then I start another with another block
As mentioned, I just want to drive the IFX via a hardware controller.
I want to be able to

  • Select each instance from 1 - 8
  • When selected I want to do the usual first 8 params
  • Bypass
  • A/B

It cant be this hard, surely???