See https://support.esign-app.com for eSign Documentation and Support

eSign Configuration

These settings control comments, labels and edit restrictions that are applied by eSign by default. A Confluence Administrator can adjust eSign global settings from Confluence Settings > eSign Configuration.

This Configuration page is available from Manage Apps - eSign or from the Confluence Settings | eSign Configuration Settings.

In addition to several options, the list of Signature Meanings can be customized here.