Into the cabs block would be nice to have a control over the axis of each microphone facing the speaker. The value could be referred in angle degrees, where 0 would be straight in front and 90 would be completely sideways.
That would require more IRs etc. Each position, level etc., is a unique IR etc.
You might have to rely on your own IRs to achieve that.
I understand that and it probably (I don’t know) be a big effort to realise, but mine it’s just a suggestion to make the miking process as realistic as possible.