Buy more KeyLocker signatures
Add KeyLocker signatures to a Code Signing certificate to replenish low volume or anticipate future usage. Additional signatures are available in packs of 100. You can only add KeyLocker signatures to an issued Code Signing certificate that uses KeyLocker.
In your CertCentral account, in the left main menu, go to My Digital Trust Products > Certificates.
In the Order list, find and choose the code signing certificate you want to add signatures to.
On the Order details page, select Actions > Buy signatures.
Change quantity as needed and check out.