BulkSignature has an email signature copy functionality that allows you to duplicate any existing email signature and use it for your needs.
To copy the email signature, follow these steps:
Go to Signature Management.
Locate the signature to duplicate.
Click Copy on that signature card.
In the right side drawer, enter a new name, select signature type, and click Save.
Select the copy and edit the template as needed.
Select users to assign the email signatures.
Click Save and assign.