XR Interaction Toolkit - Custom XRSocketInteractor doesn't display custom properties in inspector

Questions & Answers
1

When creating custom XRSocketInteractor which inherits from XRSocketInteractor, I don’t see custom fields in inspector when inspector is set to Normal mode.
I have to switch inspector to debug mode to see custom TargetTag field there.
Neither private field marked with SerializeField attribute, nor public field is visible in inspector in normal mode.
custom XR Socket Interactor snippet:

public class TaggedSocketInteractor : XRSocketInteractor
{
    [SerializeField] private string _targetTag = null;

    public override bool CanSelect(XRBaseInteractable interactable)
    {
        return base.CanSelect(interactable) && interactable.CompareTag(_targetTag);
    }

    public override bool CanHover(XRBaseInteractable interactable)
    {
        return base.CanHover(interactable) && interactable.CompareTag(_targetTag);
    }
}

I also tried to mark the whole custom class by Serializable attribute, doesn’t fix the issue.

Unity 2020.2.2f1 Personal.
Looks like a bug to me if I’m not missing something.

2

I also fell over this, you need to add some Custom Editor classes - XR Interaction Toolkit | XR Interaction Toolkit | 1.0.0-pre.8