It was decided to add an action to disable/enable a certificate in the context menu of the certificate list. It should go after "Change Certification Power" as it is similar.
The following command should be used: https://dev.gnupg.org/rG21f7ad563d9bcb6d295e8f313f29b14238e7481f
I'm not sure about the name of that action. Maybe simply "Disable/Enable"?