Can we replace existing SSL certificate with new SSL certificate with new SAN entries

Hi All,

ADFS is deployed in our environment and SSL certificate has subject alternative name (SAN) entries for required 3 domains:

sts.domain1.com
sts.domain2.com

sts.domain3.com

Can we replace existing SSL certificate with new SSL certificate with 3 more new SAN entries for

enterpriseregistration.domain1.com
enterpriseregistration.domain2.com
enterpriseregistration.domain3.com