Uploading custom keyset

Couldn’t really understand it from the docs, is it possible for me to provide my own private key/keypair?

My scenario is that we are moving from one Auth provider to Auth0, but in order to support all services that are protected by the this token, I need the signature to match (meaning that they can still verify the token against the old jwks endpoint)

I see this but not sure if thats what I’m looking for

Is this possible?