- assign a key command to “Toggle A/B Setting”
- try to switch A/B settings via key command
Result: works only for the channel EQ, neither for the channel strip nor for any plugin.
And when you switch from the Channel Strip to the EQ tab (in the Channel Settings) you have to click on the eq once again for the key command to work.
Reported this in 2012 for Cubase 7 already.