Where is the/is there a key command to AB settings of DOP/Plugin

Cubase
1

AB is the foundation of judgement for settings of using plugins…right? Where is the ability to use a shortcut/midi to toggle the AB button in dop?

I have a database assembled of all the options that I know of

  1. I cant see anything there for it

  2. There is also no way to load fx chains??

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2

No ideas? Gurus??