I’ve done a dive into the code and I don’t see any way to modify the admin UI page for options pages. Logically, there should be because it is a post type, and you should be able to add field groups to this post type. Obviously ACF is preventing this. I’ve also found no filters that would allow changing this.
I hate to say this but once again I have to say that you should contact the developers directly. They don’t monitor these forums and are not likely to see your question and they are likely the only people that could answer it.
