Can I set a Component is private in BP?

Hello.
I Add a component in a BP Class, like:

Blueprint A
    component a

And I derived a BP Class B from BP Class A, like:

Blueprint B: Blueprint A

But I want “component a” only used in Blueprint A, so is there any way i can make “component a” is private or set it is not inheritable.
All these is in the Blueprint.
Thank you.

I’d love to know this as well.
I would like to make a component private both to deriving classes and to external use.

Sry, I forgot this Post already, so I reply you so late.
In Blueprint create a Component and make it private is impossible, maybe finally I sovled this by C++.