WildCard certs are supported on CSS.
The only thing that makes it a CSR for a wildcard certificate would be that the common name would be something like "*.yourdomain.com".
Since a wildcard certificate represents multiple domains, it can be re-used on the
multiple https content rules of different IPs.
The CSR procedure for a wildcard certificate on the CSS is not different than the CSR
procedure for a regular certificate (You just need to put something like "*.yourdomain.com" in front of common name):
CSS11506(config)# ssl gencsr app1key
Country Name (2 letter code) [US]US
State or Province (full name) [SomeState]CA
Locality Name (city) [SomeCity]San Jose
Organization Name (company name) [Acme Inc]Yourdomain Inc.
Organizational Unit Name (section) [Web Administration]SSL Admin
Common Name (your domain name) [www.acme.com]*.yourdomain.com
Syed