To add custom properties in canned responses, do this:
1. Click on the Flash Button (or you can type the # key in the message field) and the canned responses menu will open up on the right side of the screen
2. Start creating a canned response or open an existing one. Add {{name}} in a canned response, we will replace the property with the user/lead value when it is recalled. We support any property
4. Click on Save
And done! 🙂