Seems like I've seen this asked and someone just asked me about this, and can't remember seeing an answer so sorry if missed it, but someone was wanting one for motion sensor where the coverage was non-annotative.
Seems to work if you nest an annotative block inside another non-annotative block with entities that are non-annotative, you just have make sure you add more than one annotative scale inside the block editor to the nested annotative block.
Attached is an example where square is non-annotative and circle is nested annotative block.