To create a signature
Simply login to your account, and select the green Create New Signature button at the top of your signature list.
To edit a signature
Simply login to your account, and from your Dashboard select the Edit button next to the signature you wish to make changes to.
To delete a signature
If you no longer require a signature for a staff or team member, simply go to your Dashboard and click Delete alongside the signature you wish to Delete.
To edit a signature name
You cannot change names or edit the names of the signatures once you have created them. You will need to delete the signature and create it again, or you can Duplicate the signature from the Dashboard, give it a new name and then delete the old one.