Click Tools, then click Options.
Double-click Certificates.
Click a certificate, then click View Details.
If you have multiple security certificates, the default security certificate is indicated by a check mark. To change the default, click a certificate, then click Set As Default.
You can change the name of your security certificate by clicking Edit Properties, then editing the text in the Certificate name box. The certificate name is reflected in the list and is not stored in the actual certificate. (This is not available when using Entrust.)