Define the signers

In the DocuGen Sign item view, expand the "Signers" accordion:

Once you click on "Set signers...", you will see a screen allowing you to set one or more signers. Signers are columns from your board: each signer can be an Email column, a People column, or a Mirror column. You can also create a new Email column on the fly by clicking on "+ Add Email column":

You can drag and drop signature fields into the document. Learn more about signature fields here. 

You are now ready to set internal notifications.