Question CreateEntites with correct SharedComponentData value

Having different values of a SharedComponentData will result in entities being put in different chunks.
I would like create a bunch of entities using EntityArchetype but with different shared component values for some.
Now i need to first create the entities (structural changes) then set the shared value (another structural changes).

Code (CSharp):

1. EntityArchetype archetype = state.EntityManager.CreateArchetype(...)
2. NativeArray<Entity> entities1 = state.EntityManager.CreateEntity(archetype, num, Allocator.Temp);
3. state.EntityManager.SetSharedComponent(entities1, new MySharedComponent
4. {
5.     Value = 111
6. });
7. NativeArray<Entity> entities2 = state.EntityManager.CreateEntity(archetype, num, Allocator.Temp);
8. state.EntityManager.SetSharedComponent(entities2, new MySharedComponent
9. {
10.     Value = 222
11. });

It would be nice to somehow modify the archetype to reflect the change of shared component data.
I can stuff the commands in an ECS to avoid the sync points but data will still be shuffled around unnecessarily.