Create a structure Add a field of any non-Structure type (e.g. String) Add a field of another non-Structure type (e.g. number) Drag the number field down -> if you keep the field aligned to the margin, it will nest under its immediate sibling, turning it into a Structure -> if you keep it closer to the center (which IMO would suggest nesting) it's instead treated as a sibling I understand this is probably intended behavior, but IMO it is confusing Expected: if you drag a field over a non-Structure field, I would expect such non-Structure field NOT to be converted into a Structure, and thus NOT nest the field you are dragging under it