Hi, I need to create a new Developer ID installer certificate as I cannot locate the private key on my old computer. I need to revoke the certificate. I have the Account holder and admin rights but I can't see the revoke option. And when I try to create a new certificate, the panel response is "There is already an existing one." Again, I need to install a new Developer ID installer certificate on the KeyChain of my new computer with its private key. I can't codesign and complete my work at the moment ! I have sent several support e-mails but no single response ! Any guidance is much appreciated. thank you.