Locking a stereo sound source in HOA project?

Hey community

I’m actually using Nuendo 11 but I thought i’d have more luck on this sub-forum. So I’ve had a look through the operation manual and can’t find the guidance I need for my question.

I’m looking into the method of “locking” an audio source in the sound field when working in higher order ambisonics. Specifically, I have a stereo music score that I want to lock as stereo so that it ignores head tracking and just stays as a constant sound source without any movement in the field.

What is the easiest way to achieve this?