Atomic Chess Study engine

I am trying to create a study for atomic chess openings. When I create a chapter I can say that this is for atomic chess and I can pick one of four engines to do this analysis with. Is there a particular one that is best for this? The ones that I have chosen have given me very poor evaluations at times. When I just do an analysis rather than a study, the engine FCF 16 HCE seems to be just fine. However, when I am in study mode that is not one of the four engines that is offered. They are all Stockfish engines with the following suffices 11 HCE, 14 NNUE, 16 NNUE - 7 MB, 16 NNUE - 40 MB. On the Analysis Board, after I have selected the Atomic variant, I get a choice of Fairy Stockfish 16 (aka FSF 16 HCE) and Stockfish 11 Multi-Variant (SF 11 MV HCE).

I use Fairy Stockfish 16. I can only seem to find FSF and SF 11 MV when I'm in a study. I think the analysis in study is the same as the analysis in the analysis board for me.