client certificate and how to add it in the recorder

I need to record a script against a https site and I have been provided a client certificate from a developer, which my browser prompts me for whe accessing the site.
See the attachment. I also get a warning that gives me the option to “allways allow” this certificate.

How can I add this in the recorder and is it a “Provided Keystore” og “Certificate Authority” ?

Cheers

Not supported atm: https://github.com/gatling/gatling/issues/2909
Contribs welcome :slight_smile: