Use Zenject FromSubContainerResolve on ProjectContext to SceneContext

Question

I have a Unity + Zenject setup with a ProjectInstaller with some global dependencies that adhere to a "modal" interface, e.g.,

public class ProjectInstaller : MonoInstaller {
  public override void InstallBindings() {
    Container.Bind<ModalManager>().AsSingle();

    Container.Bind<Modal>().To<DialogManager>().AsSingle();
  }
}

Some modals are only relevant to certain scenes, so I bind those in the SceneInstaller:

public class SceneInstaller : MonoInstaller {
  public override void InstallBindings() {
    Container.BindInterfacesAndSelfTo<InventoryManager>()
      .FromComponentInNewPrefab(InventoryPrefab)
      .AsSingle()
  }
}

I want to manage all modals from the single ModalManager, defined at the project scope. So it has a List<Modal> binding:

public class ModalManager : MonoBehaviour {
    [Inject]
    protected List<Modal> _modals;
}

When I run this, the ModalManager only gets a single modal: the one defined in the project scope. In my understanding the SceneContext is a subcontainer of the ProjectContext. So I should be able to use FromSubContainerResolve in the ProjectInstaller to bind items in the child scene, perhaps by adding a line like:

// ProjectInstaller.cs
public override void InstallBindings() {
  // ...
  Container.Bind<Modal>().To<InventoryManager>().FromSubContainerResolve();
}

But I'm not sure which of the eleventy FromSubContainerResolve methods make sense for this case. They all seem pertinent to prefabs with a game object context, not for use from within the ProjectContext.

Does this use case make sense? Is there an easier or better way?